AMIDOGEN

Etymology

Noun

amidogen (plural amidogens)

(inorganic compound, dated) The amino radical, •NH₂, the neutral form of the amide ion −NH₂⁻, regardable as the ammonia molecule with one of its hydrogen atoms removed.

Synonyms: amido group, amido radical, amino radical, aminyl radical, azanyl radical, dihydridonitrogen.

Source: Wiktionary

A*mid"o*gen, n. Etym: [Amide + -gen.] (Chem.)

Definition: A compound radical, NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed; -- called also the amido group, and in composition represented by the form amido.

Source: Webster’s Unabridged Dictionary 1913 Edition