- a silvery-white metallic element that oxidizes rapidly in the air and whose compounds are used as fertilizer and in special hard glasses. Symbol: K; atomic weight: 39.102; atomic number: 19; specific gravity: 0.86 at 20°C.
Origin of potassium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for potassium
It takes around 48 hours for a patient poisoned with potassium to die, which gave Poggiali plenty of distance from the deaths.Nurse Nasty Suspected of Killing 38 People in Italy
Barbie Latza Nadeau
October 15, 2014
The summertime staple is also a good source of potassium, vitamin A and vitamin C. 2.
Unlike sports beverages, coconut water is low in carbohydrates, while still rich in potassium.
They also have potassium for hydration and iron for healthy circulation.Mushrooms Are Magic for Women Trying to Lose Weight
May 22, 2014
Feel good about using cottage cheese as a dip because it delivers calcium, quality protein and potassium.6 Ways to Avoid ‘Sochi Gut’ While Watching the Olympics
Jenna A. Bell
February 12, 2014
The most important are carbonate of soda, potash, and cyanide of potassium.
Potassium nitrate, 75 parts; charcoal, 15 parts; sulphur, 10 parts.
He did so, and gave me daily a teaspoonful of bromide of potassium.Memoirs
Charles Godfrey Leland
They are then dipped for a moment in a boiling solution of potassium cyanide.
This is a sign that the bath is deficient in potassium cyanide.
- a light silvery element of the alkali metal group that is highly reactive and rapidly oxidizes in air; occurs principally in carnallite and sylvite. It is used when alloyed with sodium as a cooling medium in nuclear reactors and its compounds are widely used, esp in fertilizers. Symbol: K; atomic no: 19; atomic wt: 39.0983; valency: 1; relative density: 0.862; melting pt: 63.71°C; boiling pt: 759°C
C19: New Latin potassa potash
Word Origin and History for potassium
Online Etymology Dictionary, © 2010 Douglas Harper
- A soft, highly or explosively reactive metallic element that occurs in nature only in compounds and is found in or converted to a wide variety of salts used especially in fertilizers and soaps. Its radioisotopes are used in various diagnostic studies, including myocardial scans, detection and localization of tumors, determination of intracellular fluid space, and determination of renal blood flow. Atomic number 19.kalium
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A soft, highly reactive, silvery-white metallic element of the alkali group occurring in nature only in compounds. It is essential for the growth of plants and is used especially in fertilizers and soaps. Atomic number 19; atomic weight 39.098; melting point 63.65°C; boiling point 774°C; specific gravity 0.862; valence 1. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.