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Definition of Phosphorus

Babylon English Dictionary

nonmetallic chemical element
Phosphorus Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(n.)
The morning star; Phosphor.
  
(n.)
Hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies.
  
(n.)
A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

phosphorus
\phos"phor*us\ (?), n.; pl. phosphori (#). [l., the morning star, gr. &?;, lit., light bringer; &?; light + &?; to bring.]
1. the morning star; phosphor.
2. (chem.) a poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. it is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. it always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. it is used in the composition on the tips of friction matches, and for many other purposes. the molecule contains four atoms. symbol p. atomic weight 31.0.
3. (chem.) hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies.


  similar words(4) 



 red phosphorus 
 bologna phosphorus 
 metallic phosphorus 
 phosphorus disease 
Concise English-Irish Dictionary v. 1.1
fosfar
JM Welsh <=> English Dictionary
Ffoddiaint = n. phosphorus
WordNet 2.0

Noun
1. a planet (usually Venus) seen just before sunrise in the eastern sky
(synonym) morning star, daystar
(hypernym) planet

Noun
1. a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
(synonym) P, atomic number 15
(hypernym) chemical element, element
(substance-holonym) apatite
Phosphorus Definition from Social Science Dictionaries & Glossaries
Dream Dictionary
To dream of seeing phosphorus, is indicative of evanescent joys.

For a young woman, it foretells a brilliant but brief success with admirers.
  
Ten Thousand Dreams Interpreted, or "What's in a dream": a scientific and practical exposition; By Gustavus Hindman, 1910. For the open domain e-text see: Guttenberg Project
Phosphorus Definition from Science & Technology Dictionaries & Glossaries
Chemistry of the Elements
Name: phosphorus
Symbol: P
Atomic number: 15
Atomic weight: 30.973761 (2)
Group in periodic table: 15
Group name: Pnictogen
Period in periodic table: 3
Block in periodic table: p-block
CAS registry ID: 7723-14-0

Phosphorus is commonly misspelled "phosphorous". It is an essential component of living systems and is found in nervous tissue, bones and cell protoplasm. Phosphorus exists in several allotropic forms including white (or yellow), red, and black (or violet). White phosphorus has two modifications. Ordinary phosphorus is a waxy white solid. When pure, it is colourless and transparent. It is insoluble in water, but soluble in carbon disulphide. It catches fire spontaneously in air, burning to P4O10, often misnamed as phosphorus pentoxide. When exposed to sunlight, or when heated in its own vapour to 250°C, it is converted to the red variety. This form does not ignite spontaneously and it is a little less dangerous than white phosphorus. The red modification is fairly stable and sublimes with a vapour pressure of 1 atmosphere at 417°C.
Mineralogy Database
Atomic Mass : 30.973762
Atomic Number : 15
Name Origins: Greek, phosphoros = "bringer of light."
Year Discovered : 1669
Discovery Credits : Discovered by Hennig Brandt at Hamburg, Germany
More Details
Phosphorus Definition from Computer & Internet Dictionaries & Glossaries
Integrated Circuit Terminology
atomic symbol, P, phosphorus is the 15th element in the periodic table (atomic number 15) with an atomic weight of 30.91. A group V element phosphorus is a donor in silicon, i.e., makes silicon N-type. Phosphorus a commonly used N-type dopant and has a relatively high diffusivity compared to arsenic and antimony, other common N-type dopants, and a diffusivity and similar to boron, the most common P-type dopant.
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Phosphorus Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
Phosphorus is a nonmetallic chemical element with symbol P and atomic number 15. A multivalent pnictogen, phosphorus as a mineral is almost always present in its maximally oxidised state, as inorganic phosphate rocks. Elemental phosphorus exists in two major forms—white phosphorus and red phosphorus—but due to its high reactivity, phosphorus is never found as a free element on Earth.

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Phosphorus Definition from Society & Culture Dictionaries & Glossaries
EPA Terms of Environment
An essential chemical food element that can contribute to the eutrophication of lakes and other water bodies. Increased phosphorus levels result from discharge of phosphorus-containing materials into surface waters.
Provided as a public service by the U.S. Environmental Protection Agency
Environmental Engineering (English ver.)
An essential chemical food element that can contribute to the eutrophication of lakes and other water bodies. Increased phosphorus levels result from discharge of phosphorus-containing materials into surface waters.
Phosphorus Definition from Entertainment & Music Dictionaries & Glossaries
English to Federation-Standard Golic Vulcan
yon-tukh
Phosphorus Definition from Religion & Spirituality Dictionaries & Glossaries
Rakefet
Phosphorus phosphoros (Greek) Light-bringing; equivalent of Latin Lucifer (the morning star; a torchbearer, e.g., Hecate, a form of the moon). Satan, according to Christian legend, was once Phosphorus, the redeemer. Also a personified aspect of the astral fire and light in the anima mundi. Eliphas Levi speaks of the interior phosphorus, meaning the astral light.
In alchemy and chemistry, applied to any substance which emitted light, but was monopolized for the familiar chemical element first isolated by Brandt of Hamburg in 1669.
Phosphorus Definition from Medicine Dictionaries & Glossaries
NCI Dictionary of Cancer Terms
[FOS-for-us]
A nonmetallic element that is found in the blood, muscles, nerves, bones, and teeth and is a component of adenosine triphosphate (ATP; the primary energy source for the body's cells).
A Service of the National Cancer Institute.
Dictionary of Medicine (Shahram)
An essential element in the diet and a major component of bone.
Hepatitis Central (TM) Liver Disease Medical Glossary
Second most abundant mineral in the body found in every living cell. Involved in the proper functioning of both muscles and nerves. Needed for metabolic processes of all cells, to activate many other nutrients. The phosphorus content of the body is approximately one percent of total body weight. Phosphorus combines with fats to form phospholipids. It takes part in the production of energy for the body, and it is second only to calcium as a constituent of bones and teeth. Phosphorus is necessary for metabolic functions relating to the brain and the nerves, as well as for muscle action and enzyme formation.