the bivalent group =NH not linked to any acid group.
Why Are Singing Groups Called “Glee Clubs”?These infamously chipper singing groups are called glee because the melding of voices makes everyone happy, right? Actually, joy has little to do with it.
Compare imido group.
Origin of imino group
First recorded in 1905–10
Also called imino radical.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019