Wiktionary
aldimine
n. (context organic chemistry English) An imine derived from an aldehyde; general formula RCH=NR
Wikipedia
Aldimine
In organic chemistry, an aldimine is an imine that is an analog of an aldehyde. As such, aldimines have the general formula R–CH=N–R'. Aldimines are similar to ketimines, which are analogs of ketones.
An important subset of aldimines are the Schiff bases, in which the substituent on the nitrogen atom (R') is an alkyl or aryl group (i.e. not a hydrogen atom).
-(primary)-skeletal.png|Primary aldimine -(secondary)-skeletal.png|Secondary aldimine general structure.svg|Aldehyde