Webster's Revised Unabridged Dictionary · 1913

Aigret

Aigret ({not transcribed}) , noun

[French, a sort of white heron, with a tuft of feathers on its head; a tuft of feathers; dim. of the same word as heron. See Heron, and compare Egret, Egrette.]

1.
(Zoology) The small white European heron. See Egret.
2.
A plume or tuft for the head composed of feathers, or of gems, etc. — Prescott
3.
(Botany) A tuft like that of the egret.
(Botany) A feathery crown of seed; egret; as, the aigrette or down of the dandelion or the thistle.

Also: Aigrette