am·mo·ni·ac 1 ( -m  n - k ) also am·mo·ni·a·cal (m-n -kl)adj. Of, containing, or similar to ammonia. |
| am·mo·ni·ac 2 (-mn-k) n. A strong-smelling gum resin from the stems of a plant (Dorema ammoniacum) of western Asia, formerly used in perfumery and in medicine as an expectorant and a stimulant. Also called gum ammoniac. [Middle English ammoniak, from Latin amm niacum, from Ammniacus, of Amen, from Greek Ammniakos; see ammonia.] |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | ammoniac - the aromatic gum of the ammoniac plant gum - any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying |
| Adj. | 1. | ammoniac - pertaining to or containing or similar to ammonia |
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