am|mo|ni|ac

am|mo|ni|ac «uh MOH nee ak», noun, adjective.

–n.

1. a gum resin used for medicines and as a cement for porcelain; gum ammoniac.

2. ammonium chloride; sal ammoniac.

–adj.

= ammoniacal. (Cf. ↑ammoniacal)

╂[< Latin Ammōniacum < Greek ammōniakós of Ammon (the gum was said to come from near the shrine of Ammon in Libya)]