Emily Dickinson Lexicon

AM'IDE, or AM'I-DET, n. [Formed from ammonia, as bromid and bromuret from bromine. Should not these terms have been ammid and ammidet?]

The name of a substance consisting of one equivalent of nitrogen and two of hydrogen. It has not yet been obtained in a separate state, but it enters into a large number of compounds. These are called by terms made up of the name of the other ingredient prefixed to the word amide, as sodamide, a compound of sodium and amide. – Thomson.