a pungent gum resin obtained from the stems of certain plants (esp. Dorema ammoniacum) of the umbel family, found in Iran, S Siberia, and N India: used in perfumes, adhesives, and porcelain cements, and formerly in medicine
Origin of ammoniacMiddle English ammoniak ; from Medieval Latin armoniac ; from Classical Latin ammoniacum ; from Classical Greek amm?niakon, gum resin: origin, originally , probably from its occurrence in plants growing near the temple of Jupiter Ammon in Egyptian
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.
Origin of ammoniacMiddle English ammoniak, from Latin ammōniacum, from Ammōniacus, of Amen, from Greek Ammōniakos; see ammonia.
Of, containing, or similar to ammonia.
(comparative more ammoniac, superlative most ammoniac)
- Of or relating to ammonia, or possessing its properties.
- an ammoniac salt; ammoniacal gas