Entry 3 senses Webster, 1913 Aigret · Ai·gret · IPA 01 n. The small white European heron. See Egret. 1. The small white European heron. See Egret.(Zool.) See: Egret 2. A plume or tuft for the head composed of feathers, or of gems, etc. 3. A tuft like that of the egret.(Bot.)