n. Any plant of the family Apiaceae, also called Umbelliferae, whose inflorescence is an umbel, such as a carrot or celery.
the GNU version of the Collaborative International Dictionary of English
n. A plant producing an umbel or umbels.
The Century Dictionary and Cyclopedia
n. In botany, a plant of the order Umbelliferæ.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any of numerous aromatic herbs of the family Umbelliferae
Word Usage
"Other members of the umbellifer family draw in the beetles and the hoverflies, but nothing quite magnetises the invertebrate world like flowering hogweed."