hydrogen
n. (H) colorless odorless gas (lightest of the known elements) | ||||
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Hydrogen Definition from Computer & Internet Dictionaries & Glossaries
| Integrated Circuit Terminology |
Hydrogen
atomic symbol, H, argon is the 1st element in the periodic table (atomic number 1) with an atomic weight of 1.008. Hydrogen is flammable and or explosive in the range of 4.0-93.9% in air and is an asphyxiant. Hydrogen is used to generate steam in furnaces by reacting with oxygen, as a pre-clean and carrier Gas during epitaxy, and as a constituent of annealing gases.
atomic symbol, H, argon is the 1st element in the periodic table (atomic number 1) with an atomic weight of 1.008. Hydrogen is flammable and or explosive in the range of 4.0-93.9% in air and is an asphyxiant. Hydrogen is used to generate steam in furnaces by reacting with oxygen, as a pre-clean and carrier Gas during epitaxy, and as a constituent of annealing gases.
Hydrogen Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Hydrogen
(n.)
A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. It may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. It is very inflammable, and is an ingredient of coal gas and water gas. It is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. Symbol H. Atomic weight 1.
(n.)
A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. It may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. It is very inflammable, and is an ingredient of coal gas and water gas. It is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. Symbol H. Atomic weight 1.
| WordNet 2.0 |
hydrogen
Noun
1. a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
(synonym) H, atomic number 1
(hypernym) chemical element, element
(hyponym) tritium
(substance-holonym) water, H2O
(derivation) hydrogenate
Noun
1. a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
(synonym) H, atomic number 1
(hypernym) chemical element, element
(hyponym) tritium
(substance-holonym) water, H2O
(derivation) hydrogenate
| hEnglish - advanced version |
hydrogen
hydrogen
\hy"dro*gen\ (?), n. [hydro-, 1 + -gen: cf. f. hydrogène. so called because water is generated by its combustion. see hydra.] (chem.) a gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. it is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. it may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. it is very inflammable, and is an ingredient of coal gas and water gas. it is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. symbol h. atomic weight 1.
note: although a gas, hydrogen is chemically similar to the metals in its nature, having the properties of a weak base. it is, in all acids, the base which is replaced by metals and basic radicals to form salts. like all other gases, it is condensed by great cold and pressure to a liquid which freezes and solidifies by its own evaporation. it is absorbed in large quantities by certain metals (esp. palladium), forming alloy-like compounds; hence, in view of quasi-metallic nature, it is sometimes called hydrogenium. it is the typical reducing agent, as opposed to oxidizers, as oxygen, chlorine, etc.
similar words(17)
antimoniureted hydrogen
hydrogen dioxide
hydrogen ferricyanide
light carbureted hydrogen
hydrogen bomb
hydrogen bromide
tellureted hydrogen
hydrogen cyanide
hydrogen oxide
hydrogen iodide
potassium hydrogen tartrate
hydrogen sulphide
bicarbureted hydrogen
hydrogen silicide
hydrogen ferrocyanide
hydrogen phosphide
carbureted hydrogen gas
hydrogen
\hy"dro*gen\ (?), n. [hydro-, 1 + -gen: cf. f. hydrogène. so called because water is generated by its combustion. see hydra.] (chem.) a gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. it is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. it may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. it is very inflammable, and is an ingredient of coal gas and water gas. it is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. symbol h. atomic weight 1.
note: although a gas, hydrogen is chemically similar to the metals in its nature, having the properties of a weak base. it is, in all acids, the base which is replaced by metals and basic radicals to form salts. like all other gases, it is condensed by great cold and pressure to a liquid which freezes and solidifies by its own evaporation. it is absorbed in large quantities by certain metals (esp. palladium), forming alloy-like compounds; hence, in view of quasi-metallic nature, it is sometimes called hydrogenium. it is the typical reducing agent, as opposed to oxidizers, as oxygen, chlorine, etc.
similar words(17)
antimoniureted hydrogen
hydrogen dioxide
hydrogen ferricyanide
light carbureted hydrogen
hydrogen bomb
hydrogen bromide
tellureted hydrogen
hydrogen cyanide
hydrogen oxide
hydrogen iodide
potassium hydrogen tartrate
hydrogen sulphide
bicarbureted hydrogen
hydrogen silicide
hydrogen ferrocyanide
hydrogen phosphide
carbureted hydrogen gas
| JM Welsh <=> English Dictionary |
Ulai
Ulai = a. hydrogen
Ulai = a. hydrogen
Hydrogen Definition from Science & Technology Dictionaries & Glossaries
| EIA Energy Glossary |
Hydrogen
The lightest of all gases, occurring chiefly in combination with oxygen in water; exists also in acids, bases, alcohols, petroleum, and other hydrocarbons.
The lightest of all gases, occurring chiefly in combination with oxygen in water; exists also in acids, bases, alcohols, petroleum, and other hydrocarbons.
| Mineralogy Database |
Hydrogen (H )
Atomic Mass : 1.00794
Atomic Number : 1
Name Origins: Greek, hydro genes = "water forming."
Year Discovered : 1766
Discovery Credits : Recognized as an element by H. Cavendish at London, UK.
More Details
Atomic Mass : 1.00794
Atomic Number : 1
Name Origins: Greek, hydro genes = "water forming."
Year Discovered : 1766
Discovery Credits : Recognized as an element by H. Cavendish at London, UK.
More Details
| Oil and Gas Field Glossary |
Hydrogen
The lightest of all gases, occurring chiefly in combination with oxygen in water. Hydrogen combines with carbon to form an enormous variety of gaseous, liquid and solid hydrocarbons.
The lightest of all gases, occurring chiefly in combination with oxygen in water. Hydrogen combines with carbon to form an enormous variety of gaseous, liquid and solid hydrocarbons.
| ASTRONOMY UNBOUND |
Hydrogen
The lightest element in the universe, it makes up seventy five per cent of the atomic matter present. The atomic nucleus consists of a single proton. It has two more isotopes : deuterium with one neutron and tritium with two neutrons. It is the nuclear fusion of hydrogen into helium , via the proton-proton chain which generates the energy which stars radiate into space.
The lightest element in the universe, it makes up seventy five per cent of the atomic matter present. The atomic nucleus consists of a single proton. It has two more isotopes : deuterium with one neutron and tritium with two neutrons. It is the nuclear fusion of hydrogen into helium , via the proton-proton chain which generates the energy which stars radiate into space.
| Chemistry of the Elements |
Hydrogen
Name: hydrogen
Symbol: H
Atomic number: 1
Atomic weight: 1.00794 (7) g m r
Group in periodic table: 1
Group name:
Period in periodic table: 1
Block in periodic table: s-block
CAS registry ID: 1333-74-0
Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up about about 90% of the universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because of the fire risk (Hindenburg).
Name: hydrogen
Symbol: H
Atomic number: 1
Atomic weight: 1.00794 (7) g m r
Group in periodic table: 1
Group name:
Period in periodic table: 1
Block in periodic table: s-block
CAS registry ID: 1333-74-0
Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up about about 90% of the universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because of the fire risk (Hindenburg).
| General Chemistry Glossary |
hydrogen (H; protium)
(H) Element 1, atomic weight 1.00797. The most abundant element in the universe. Hydrogen occurs as H2 at ambient temperature and pressure, a colorless, odorless, and extremely flammable gas. Discovered in 1766 by Cavendish.
(H) Element 1, atomic weight 1.00797. The most abundant element in the universe. Hydrogen occurs as H2 at ambient temperature and pressure, a colorless, odorless, and extremely flammable gas. Discovered in 1766 by Cavendish.
Hydrogen Definition from Religion & Spirituality Dictionaries & Glossaries
| Rakefet |
Hydrogen
Hydrogen The chemical element hydrogen is a terrestrial manifestation of an element fundamental throughout the universe; and it is in this general sense that it is often spoken of in The Secret Doctrine. There we find hydrogen described as the material and spiritual basis, its subjective or abstract essence occupying a similar position in the world of mental and subjective phenomena to that which its physical equivalent occupies among the chemical elements. It is spiritual fire, the ray which proceeds from its still greater spiritual noumenon, the dhyani of the first element. It is a gas only on our terrestrial plane, and is very closely allied to the physical protyle or root-element. It is the upadhi of both air and water, and is fire, air, and water -- one under three aspects (SD 2:105, 112-13).
Blavatsky also states that all the matter of the universe, when analyzed by science to its ultimates, yields only four elements: hydrogen, oxygen, nitrogen, and carbon. These four are the basis of organic matter, and are correlated with the four lower human principles: hydrogen with kama and with the primary creative powers, so that the trinity of Mother-Father-Son corresponds to hydrogen, oxygen, and nitrogen.
Hydrogen The chemical element hydrogen is a terrestrial manifestation of an element fundamental throughout the universe; and it is in this general sense that it is often spoken of in The Secret Doctrine. There we find hydrogen described as the material and spiritual basis, its subjective or abstract essence occupying a similar position in the world of mental and subjective phenomena to that which its physical equivalent occupies among the chemical elements. It is spiritual fire, the ray which proceeds from its still greater spiritual noumenon, the dhyani of the first element. It is a gas only on our terrestrial plane, and is very closely allied to the physical protyle or root-element. It is the upadhi of both air and water, and is fire, air, and water -- one under three aspects (SD 2:105, 112-13).
Blavatsky also states that all the matter of the universe, when analyzed by science to its ultimates, yields only four elements: hydrogen, oxygen, nitrogen, and carbon. These four are the basis of organic matter, and are correlated with the four lower human principles: hydrogen with kama and with the primary creative powers, so that the trinity of Mother-Father-Son corresponds to hydrogen, oxygen, and nitrogen.
| Webart Magic Astronomical Glossary |
Hydrogen
The lightest and most abundant element. A hydrogen atom consists of one proton and one electron. A hydrogen nucleus is just a single proton. Hydrogen composes about 75 percent of the Sun but only a tiny fraction of the Earth.
The lightest and most abundant element. A hydrogen atom consists of one proton and one electron. A hydrogen nucleus is just a single proton. Hydrogen composes about 75 percent of the Sun but only a tiny fraction of the Earth.
Hydrogen Definition from Society & Culture Dictionaries & Glossaries
| Environmental Engineering (English ver.) |
HYDROGEN
(Chemical symbol H) An element commonly isolated as a colorless, tasteless, odorless gas, inflammable (burning with a hot, almost nonluminous flame to form water), and lighter than any other known substance. Free hydrogen occurs only very sparingly on the earth, though it is abundant in the atmospheres of the sun and many stars. Hydrogen is combined with Oxygen in Water (H2O), of which it constitutes 11.188 per cent by weight. It is also a constituent of most organic compounds, of acids and bases. Ordinary hydrogen gas is diatomic (its molecules consisting of two atoms, H2), but dissociates into free atoms at high temperatures. The hydrogen atom is the simplest of all atoms, the ordinary isotope (H1) consisting of a single proton and a single valence electron. It is accompanied by a minute amount of a heavier isotope called Deuterium (H2 or D) which is used in Heavy Water (D2O). Atomic number 1; atomic weight 1.00797; melting point -259.14°C (-434.45°F); boiling point -252.8°C (-423.04°F); density at 0°C (32°F) 0.08987 gram per liter.
(Chemical symbol H) An element commonly isolated as a colorless, tasteless, odorless gas, inflammable (burning with a hot, almost nonluminous flame to form water), and lighter than any other known substance. Free hydrogen occurs only very sparingly on the earth, though it is abundant in the atmospheres of the sun and many stars. Hydrogen is combined with Oxygen in Water (H2O), of which it constitutes 11.188 per cent by weight. It is also a constituent of most organic compounds, of acids and bases. Ordinary hydrogen gas is diatomic (its molecules consisting of two atoms, H2), but dissociates into free atoms at high temperatures. The hydrogen atom is the simplest of all atoms, the ordinary isotope (H1) consisting of a single proton and a single valence electron. It is accompanied by a minute amount of a heavier isotope called Deuterium (H2 or D) which is used in Heavy Water (D2O). Atomic number 1; atomic weight 1.00797; melting point -259.14°C (-434.45°F); boiling point -252.8°C (-423.04°F); density at 0°C (32°F) 0.08987 gram per liter.
Hydrogen Definition from Entertainment & Music Dictionaries & Glossaries
| English to Federation-Standard Golic Vulcan |
Hydrogen
masu-tukh
masu-tukh
| English - Klingon |
hydrogen
n. bIQSIp
n. bIQSIp
| Phobia |
Atomosophobia
Fear of atomic explosions
Fear of atomic explosions
Hydrophobia
Fear of water
Hydrogen Definition from Sports Dictionaries & Glossaries
| Scuba Diving |
Hydrogen
Hydrogen is an inert gas and the lightest, most abundant gas in the universe. It is believed it could be used as a substitute for helium in deep commercial and military diving.
Hydrogen is an inert gas and the lightest, most abundant gas in the universe. It is believed it could be used as a substitute for helium in deep commercial and military diving.
Hydrogen Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Hydrogen
Hydrogen (IPA: , is a chemical element represented by the symbol H and an atomic number of 1. At standard temperature and pressure it is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas (H2). With an atomic mass of 1.00794 g/mol, hydrogen is the lightest element.
Hydrogen is the most abundant of the chemical elements, constituting roughly 75% of the universe's elemental mass. Stars in the main sequence are mainly composed of hydrogen in its plasma state. Elemental hydrogen is relatively rare on Earth, and is industrially produced from hydrocarbons such as methane, after which most elemental hydrogen is used "captively" (meaning locally at the production site), with the largest markets about equally divided between fossil fuel upgrading (e.g., hydrocracking) and in ammonia production (mostly for the fertilizer market). Hydrogen may be produced from water using the process of electrolysis, but this process is presently significantly more expensive commercially than hydrogen production from natural gas.
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