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WORDNET DICTIONARY
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WORDNET DICTIONARY
Noun gum ammoniac has 1 sense
- gum ammoniac(n = noun.substance) ammoniac - the aromatic gum of the ammoniac plant; is a kind of gum
CIDE DICTIONARY
gum ammoniac, n. [L. Ammoniacum, Gr. a resinous gum, said to distill from a tree near the temple of Jupiter Ammon; cf. F. ammoniac. See Ammonite.].
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 water and in spirit of wine, and is used in medicine as an expectorant and resolvent, and for the formation of certain plasters. [1913 Webster]