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单词 ammoniac
释义
am·mo·ni·ac 2 (ə-mōnē-ăk)
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 ammōniacum, from Ammōniacus, of Amen, from Greek Ammōniakos; see AMMONIA.]
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更新时间:2025/3/22 10:50:43