from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless, pungent gas, NH3, extensively used to manufacture fertilizers and a wide variety of nitrogen-containing organic and inorganic chemicals.
- n. See ammonium hydroxide.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A gaseous compound of hydrogen and nitrogen, NH3, with a pungent smell and taste.
from the GNU version of the Collaborative International Dictionary of English
- n. A gaseous compound of hydrogen and nitrogen, NH3, with a pungent smell and taste: -- often called volatile alkali, and spirits of hartshorn.
from The Century Dictionary and Cyclopedia
- n. The modern name of the volatile alkali, NH3, formerly so called to distinguish it from the more fixed alkalis.
- n. [capitalized] In zoöl.: An old quasi-generic name of Spirula. Breyn, 1732. A genus of arachnidans.
- n. The great value of ammonia as a fertilizer, chiefly in the form of ammonium sulphate, renders the question of its supply on a large scale one of much importance. Until recent years it was obtained mainly from the watery ammoniacal liquor which is a by-product of the manufacture of coal-gas for illuminating purposes. This source of supply has been seriously threatened by the extension, especially in the United States, of the use of carbureted water-gas, in making which little or no ammonia is obtained. Notable improvements, however, have been made in methods for the recovery of ammonia from the waste gases of coke-ovens, shale-works, and blast-furnaces, and very considerable amounts are now obtained from these previously neglected sources. One of the most interesting results secured with the aid of the high temperature of the modern electric furnace is the synthetical production of ammonia from the nitrogen of atmospheric air and the hydrogen of water. Carbon in the form of coke is mixed with lime and the mixture intensely heated in the presence of atmospheric nitrogen, giving rise to carbon-monoxid gas and calcium cyanamide (CaCN2). The latter, heated with water under pressure, yields calcium carbonate and ammonia (CaCN2 + 3H2O = CaCO3 + 2N H3). It appears that cyanamide itself may serve, when used directly as a fertilizer, to furnish assimilable nitrogen to growing plants.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a water solution of ammonia
- n. a pungent gas compounded of nitrogen and hydrogen (NH3)
Thus, for instance, all those salts which are formed by the combination of the sulphuric acid with any of the salifiable bases are called _sulphats_, and the name of the radical is added for the specific distinction of the salt; if it be potash, it will compose a _sulphat of potash_; if ammonia, _sulphat of ammonia_, &c.
“Where mixed alkalies and superphosphate,” said the Doctor, “are added to the ammonia, the increase _from the ammonia_ is far greater than where ammonia is used alone.
A special type of rock salt found at Siwa valued for its chemical properties was known far and wide as the salt of Ammon—thus our term ammonia.
I'm sitting in the dugout and notice a water cooler with the word "ammonia" written on it.
The room has a common wall with the stables and ammonia is filtering through.
Wheat that gets enough ammonia is 14% protein, if it is unfertilized closer to 8%, and that 43% reduction in total plant protein is going to cause unimaginable suffering in places like Egypt, where half of the population gets subsidized bread.
The ammonia is then cooled using cold water from the ocean depths, returning it into a liquid state so the process can start all over again.
In the 1950s, Urey theorized that the early atmosphere of the Earth was probably like the atmosphere now present on Jupiter – i.e., rich in ammonia, methane, and hydrogen.
She dropped her eight year old daughter off at school and then she and her husband went to steal anhydrous ammonia from a nearby farmer in order to make methamphetamine.
However, ammonia is also useful for making illegal methamphetamines, and thefts are a regular problem.