Chem. [f. AMIDE + -IDE.] A simple compound of amidogen with another element or complex radical.
1854. Pereira, Mat. Med. (ed. 4), I. 436. The amidide of hydrogen (ammonia) combines with the hydracids to form the hydrsalts.
1869. Eng. Mech., 19 March, 581/3. It was proposed to regard the two molecules as an amidide of ammonium NH4, NH2.