1. in some classifications considered a separate family comprising a subgroup of the Compositae including the ragweeds; [syn: Ambrosiaceae, family Ambrosiaceae]
WordNet (r) 3.0 (2006):
family Ambrosiaceae
n 1: in some classifications considered a separate family
comprising a subgroup of the Compositae including the
ragweeds [syn: Ambrosiaceae, family Ambrosiaceae]