The story
From hydrazonoic + -yl.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Any univalent radical, of general formula R₂N-N=C(R)-O-, derived from a hydrazonoic acid Full definition →
From hydrazonoic + -yl.
Etymology from Wiktionary, CC BY-SA 4.0.