potassium
n. (K) silver-white metallic element (Chemistry) | ||||
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Potassium Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Potassium
(n.)
An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium).
(n.)
An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium).
| WordNet 2.0 |
potassium
Noun
1. a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
(synonym) K, atomic number 19
(hypernym) metallic element, metal
(substance-holonym) seawater, saltwater, brine
Noun
1. a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
(synonym) K, atomic number 19
(hypernym) metallic element, metal
(substance-holonym) seawater, saltwater, brine
| hEnglish - advanced version |
potassium
potassium
\po*tas"si*um\ (?), n. [nl. see potassa, potash.] (chem.) an alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. atomic weight 39.0. symbol k (kalium).
note: it is reduced from the carbonate as a soft white metal, lighter than water, which oxidizes with the greatest readiness, and, to be preserved, must be kept under liquid hydrocarbons, as naphtha or kerosene. its compounds are very important, being used in glass making, soap making, in fertilizers, and in many drugs and chemicals.
potassium
permanganate, the salt kmno4, crystallizing in dark red prisms having a greenish surface color, and dissolving in water with a beautiful purple red color; -- used as an oxidizer and disinfectant. the name chameleon mineral is applied to this salt and also to potassium manganate.
potassium
bitartrate. see cream of tartar, under cream.
potassium
n : a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite [syn: k, atomic number 19]
potassium
symbol: k atomic number: 19 atomic weight: 39.0983 soft silvery metallic element belonging to group 1 of the periodic table (alkali metals). occurs naturally in seawater and a many minerals. highly reactive, chemically, it resembles sodium in its behavior and compounds. discovered by sir humphry davy in 1807.
-- elements
similar words(9)
antimony potassium tartrate
potassium bitartrate
acid potassium tartrate
potassium hydrogen tartrate
potassium ferrocyanide
potassium ferricyanide
potassium permanganate
potassium carboxide
potassium chloride
potassium
\po*tas"si*um\ (?), n. [nl. see potassa, potash.] (chem.) an alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. atomic weight 39.0. symbol k (kalium).
note: it is reduced from the carbonate as a soft white metal, lighter than water, which oxidizes with the greatest readiness, and, to be preserved, must be kept under liquid hydrocarbons, as naphtha or kerosene. its compounds are very important, being used in glass making, soap making, in fertilizers, and in many drugs and chemicals.
potassium
permanganate, the salt kmno4, crystallizing in dark red prisms having a greenish surface color, and dissolving in water with a beautiful purple red color; -- used as an oxidizer and disinfectant. the name chameleon mineral is applied to this salt and also to potassium manganate.
potassium
bitartrate. see cream of tartar, under cream.
potassium
n : a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite [syn: k, atomic number 19]
potassium
symbol: k atomic number: 19 atomic weight: 39.0983 soft silvery metallic element belonging to group 1 of the periodic table (alkali metals). occurs naturally in seawater and a many minerals. highly reactive, chemically, it resembles sodium in its behavior and compounds. discovered by sir humphry davy in 1807.
-- elements
similar words(9)
antimony potassium tartrate
potassium bitartrate
acid potassium tartrate
potassium hydrogen tartrate
potassium ferrocyanide
potassium ferricyanide
potassium permanganate
potassium carboxide
potassium chloride
| Concise English-Irish Dictionary v. 1.1 |
potassium
potaisiam
potaisiam
Potassium Definition from Medicine Dictionaries & Glossaries
| NCI Dictionary of Cancer Terms |
potassium
[po-TASS-ee-um]
A metallic element that is important in body functions such as regulation of blood pressure and of water content in cells, transmission of nerve impulses, digestion, muscle contraction, and heartbeat.
[po-TASS-ee-um]
A metallic element that is important in body functions such as regulation of blood pressure and of water content in cells, transmission of nerve impulses, digestion, muscle contraction, and heartbeat.
| Aids Glossary |
potassium
a mineral necessary for the maintenance of homoestatis by the body.
a mineral necessary for the maintenance of homoestatis by the body.
| Hepatitis Central (TM) Liver Disease Medical Glossary |
Potassium
Mineral that serves as an electrolyte and is involved in the balance of fluid within the body. Our bodies contain more than twice as much potassium as sodium (typically nine ounces versus four ounces). About 98 percent of total body potassium is inside our cells. The principal cation (positive ion) of the fluid within cells. It is important in controlling the activity of the heart, muscles, nervous system and just about every cell in the body. Also regulates the water balance and base balance in the blood and tissues. Evidence is showing that potassium is also involved in bone calcification. Potassium is a co-factor in many reactions, especially those involving energy production and muscle building. Increase in serum potassium is seen in states characterized by excess destruction of cells, with redistribution of K+ from the intra- to the extracellular compartment, as in massive hemolysis, crush injuries, hyperkinetic activity, and malignant hyperpyrexia. Decreased renal K+ excretion is seen in acute renal failure, some cases of chronic renal failure, Addison's disease, and other sodium-depleted states. Hyperkalemia due to pure excess of K+ intake is usually iatrogenic. Drugs causing hyperkalemia include amiloride, aminocaproic acid, antineoplastic agents, epinephrine, heparin, histamine, indomethacin, isoniazid, lithium, mannitol, methicillin, potassium salts of penicillin, phenformin, propranolol, salt substitutes, spironolactone, succinylcholine, tetracycline, triamterene, and tromethamine. Spurious hyperkalemia can be seen when a patient exercises his/her arm with the tourniquet in place prior to venipuncture. Hemolysis and marked thrombocytosis may cause false elevations of serum K+ as well. Failure to promptly separate serum from cells in a clot tube is a notorious source of falsely elevated potassium. Decrease in serum potassium is seen usually in states characterized by excess K+ loss, such as in vomiting, diarrhea, villous adenoma of the colorectum, certain renal tubular defects, hypercorticoidism, etc. Redistribution hypokalemia is seen in glucose/insulin therapy, alkalosis (where serum K+ is lost into cells and into urine), and familial periodic paralysis. Drugs causing hypokalemia include amphotericin, carbenicillin, carbenoxolone, corticosteroids, diuretics, licorice, salicylates, and ticarcillin
Mineral that serves as an electrolyte and is involved in the balance of fluid within the body. Our bodies contain more than twice as much potassium as sodium (typically nine ounces versus four ounces). About 98 percent of total body potassium is inside our cells. The principal cation (positive ion) of the fluid within cells. It is important in controlling the activity of the heart, muscles, nervous system and just about every cell in the body. Also regulates the water balance and base balance in the blood and tissues. Evidence is showing that potassium is also involved in bone calcification. Potassium is a co-factor in many reactions, especially those involving energy production and muscle building. Increase in serum potassium is seen in states characterized by excess destruction of cells, with redistribution of K+ from the intra- to the extracellular compartment, as in massive hemolysis, crush injuries, hyperkinetic activity, and malignant hyperpyrexia. Decreased renal K+ excretion is seen in acute renal failure, some cases of chronic renal failure, Addison's disease, and other sodium-depleted states. Hyperkalemia due to pure excess of K+ intake is usually iatrogenic. Drugs causing hyperkalemia include amiloride, aminocaproic acid, antineoplastic agents, epinephrine, heparin, histamine, indomethacin, isoniazid, lithium, mannitol, methicillin, potassium salts of penicillin, phenformin, propranolol, salt substitutes, spironolactone, succinylcholine, tetracycline, triamterene, and tromethamine. Spurious hyperkalemia can be seen when a patient exercises his/her arm with the tourniquet in place prior to venipuncture. Hemolysis and marked thrombocytosis may cause false elevations of serum K+ as well. Failure to promptly separate serum from cells in a clot tube is a notorious source of falsely elevated potassium. Decrease in serum potassium is seen usually in states characterized by excess K+ loss, such as in vomiting, diarrhea, villous adenoma of the colorectum, certain renal tubular defects, hypercorticoidism, etc. Redistribution hypokalemia is seen in glucose/insulin therapy, alkalosis (where serum K+ is lost into cells and into urine), and familial periodic paralysis. Drugs causing hypokalemia include amphotericin, carbenicillin, carbenoxolone, corticosteroids, diuretics, licorice, salicylates, and ticarcillin
| High Blood Pressure |
Potassium
A mineral in the body's cells needed for maintaining fluid balance. Good sources of potassium are bananas and orange juice. Salt substitutes usually contain potassium.
A mineral in the body's cells needed for maintaining fluid balance. Good sources of potassium are bananas and orange juice. Salt substitutes usually contain potassium.
| BUKHARI'S MAGIC LAB |
potassium
serum
3.5-5.0 mmol/L
Urinary
25-100 mmol/24 hr
serum
3.5-5.0 mmol/L
Urinary
25-100 mmol/24 hr
Potassium Definition from Science & Technology Dictionaries & Glossaries
| Mineralogy Database |
Potassium (K )
Atomic Mass : 39.0983
Atomic Number : 19
Name Origins: English, potash; Latin kalium.
Year Discovered : 1807
Discovery Credits : Sir Humphry Davy at London, UK.
More Details
Atomic Mass : 39.0983
Atomic Number : 19
Name Origins: English, potash; Latin kalium.
Year Discovered : 1807
Discovery Credits : Sir Humphry Davy at London, UK.
More Details
| Horticulture Solutions Series |
POTASSIUM
Potassium increases the plant's vigor including disease resistance. Strong, stiff stalks are also an effect of potassium. Additionally, potassium promotes productions of sugar, starches and oils,increases size of grains and fruits and improves the quality of the crop's yield.
Potassium increases the plant's vigor including disease resistance. Strong, stiff stalks are also an effect of potassium. Additionally, potassium promotes productions of sugar, starches and oils,increases size of grains and fruits and improves the quality of the crop's yield.
| Chemistry of the Elements |
Potassium
Name: potassium
Symbol: K
Atomic number: 19
Atomic weight: 39.0983 (1)
Group in periodic table: 1
Group name: Alkaline metal
Period in periodic table: 4
Block in periodic table: s-block
CAS registry ID: 7440-09-7
The metal is the seventh most abundant and makes up about 1.5 % by weight of the earth's crust. Potassium is an essential constituent for plant growth and it is found in most soils. It is also a vital element in the human diet.
Potassium is never found free in nature, but is obtained by electrolysis of the chloride or hydroxide, much in the same manner as prepared by Davy. It is one of the most reactive and electropositive of metals and, apart from lithium, it is the least dense known metal. It is soft and easily cut with a knife. It is silvery in appearance immediately after a fresh surface is exposed.
It oxidises very rapidly in air and must be stored under argon or under a suitable mineral oil. As do all the other metals of the alkali group, it decomposes in water with the evolution of hydrogen. It usually catches fire during the reaction with water. Potassium and its salts impart a lilac colour to flames.
Name: potassium
Symbol: K
Atomic number: 19
Atomic weight: 39.0983 (1)
Group in periodic table: 1
Group name: Alkaline metal
Period in periodic table: 4
Block in periodic table: s-block
CAS registry ID: 7440-09-7
The metal is the seventh most abundant and makes up about 1.5 % by weight of the earth's crust. Potassium is an essential constituent for plant growth and it is found in most soils. It is also a vital element in the human diet.
Potassium is never found free in nature, but is obtained by electrolysis of the chloride or hydroxide, much in the same manner as prepared by Davy. It is one of the most reactive and electropositive of metals and, apart from lithium, it is the least dense known metal. It is soft and easily cut with a knife. It is silvery in appearance immediately after a fresh surface is exposed.
It oxidises very rapidly in air and must be stored under argon or under a suitable mineral oil. As do all the other metals of the alkali group, it decomposes in water with the evolution of hydrogen. It usually catches fire during the reaction with water. Potassium and its salts impart a lilac colour to flames.
Potassium Definition from Entertainment & Music Dictionaries & Glossaries
| English to Federation-Standard Golic Vulcan |
Potassium
spoh-tukh
spoh-tukh
Potassium Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Potassium
Potassium (IPA: ) is a chemical element. It has the symbol K ( → ) and atomic number 19. The name "potassium" comes from the word "potash", as potassium was first isolated from potash. Potassium is a soft silvery-white metallic alkali metal that occurs naturally bound to other elements in seawater and many minerals. It oxidizes rapidly in air and is very reactive, especially towards water. In many respects, potassium and sodium are chemically similar, although organisms in general, and animal cells in particular, treat them very differently.
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