AIGRETTE Meaning of AIGRETTE in English [ 'eɪgrɛt , eɪ'grɛt ]■ noun a headdress consisting of a white egret's feather or other decoration such as a spray of gems.OriginC18: from Fr., 'egret'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004