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A gaseous compound of hydrogen and nitrogen, NH3, with a pungent smell and taste: -- often called volatile alkali, and spirits of hartshorn.

Of or pertaining to ammonia, or possessing its properties; as, an ammoniac salt; ammoniacal gas. Ammoniacal engine, an engine in which the vapor of ammonia is used as the motive force. -- Sal ammoniac Etym: [L. sal ammoniacus], the salt usually called chloride of ammonium, and formerly muriate of ammonia.…

The concrete juice (gum resin) of an umbelliferous plant, the Dorema ammoniacum. It is brought chiefly from Persia in the form of yellowish tears, which occur singly, or are aggregated into masses. It has a peculiar smell, and a nauseous, sweet taste, followed by a bitter one. It is inflammable, partially soluble in wa…

Any fermentation process by which ammonia is formed, as that by which urea is converted into ammonium carbonate when urine is exposed to the air.

Combined or impregnated with ammonia.

Same as Hydroxylamine.

Made from scammony; as, a scammoniate aperient.

A white crystalline solid, from ammonia by replacement of an equivalent of hydrogen by acetyl.

A white crystalline base, C3H7NO2, derived from aldehyde ammonia.

One of a series of compounds that may be regarded as ammonia in which a part of the hydrogen has been replaced by basic, and another part by acid, atoms or radicals.

lkalies, potash and soda. -- Vegetable alkalies. Same as Alkaloids. -- Volatile alkali, ammonia, so called in distinction from the fixed alkalies.

Related to, or derived, ammonia; -- used chiefly as a suffix; as, amic acid; phosphamic acid. Amic acid (Chem.), one of a class of nitrogenized acids somewhat resembling amides.

rmed by the union of amidogen with an acid element or radical. It may also be regarded as ammonia in which one or more hydrogen atoms have been replaced by an acid atom or radical. Acid amide, a neutral compound formed by the substitution of the amido group for hydroxyl in an acid.

A compound radical, NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed; -- called also the amido group, and in composition represented by the form amido.

One of a class of strongly basic substances derived from ammonia by replacement of one or more hydrogen atoms by a basic atom or radical.

Of or pertaining to ammonia.

An organic base belonging to the phenylamines. It may be regarded as ammonia in which one hydrogen atom has been replaced by the radical phenyl. It is a colorless, oily liquid, originally obtained from indigo by distillation, but now largely manufactured from coal tar or nitrobenzene as a base from which many brilliant…

ification, determined by the word or words annexed. Aqua ammoniæ, the aqueous solution of ammonia; liquid ammonia; often called aqua ammonia. -- Aqua marine, or Aqua marina. Same as Aquamarine. -- Aqua regia. Etym: [L., royal water] (Chem.), a very corrosive fuming yellow liquid consisting of nitric and hydrochloric…

Ammoniac. [Obs.]

hand, caused by the irritating properties of yeast. -- Baker's salt, the subcarbonate of ammonia, sometimes used instead of soda, in making bread.