/ay"gret, ay gret"/ , n.
1. a plume or tuft of feathers, esp. the back plume of any of various herons, arranged as a head ornament.
2. a jeweled ornament depicting or suggesting this, usually worn in the hair or on a hat.
[ 1635-45; aigr- ( heiger heron) + -ette -ETTE. See EGRET, HERON ]