Any plant of the family Apiaceae, also called Umbelliferae, whose inflorescence is an umbel, such as a carrot or celery.

plural of umbellifer

(botany) Bearing umbels. / (botany) Pertaining to a member of the family Umbelliferae.

plural of umbelliferone

(chemistry) A yellowish-white natural product of the coumarin family, occurring in such plants as carrot and coriander.

(organic chemistry, especially in combination) A univalent radical derived from umbelliferone

plural of umbelliferyl

Alternative form of umbelliferone