SG Heritage Dictionary

Umbellifer [Noun] Webster's Dictionary 1913

A plant producing an umbel or umbels.

Umbelliferone [Noun] Webster's Dictionary 1913

A tasteless white crystalline substance, C9H6O3, found in the bark of a certain plant (Daphne Mezereum), and also obtained by the distillation of certain gums from the Umbelliferae, as galbanum, asafetida, etc. It is analogous to coumarin. Called also hydroxy-coumarin.

Umbelliferous [Adjective] Webster's Dictionary 1828

Producing the inflorescence called an umbel; bearing umbels; as umbelliferous plants.

Umbelliferous [Adjective] Webster's Dictionary 1913

1. Producing umbels.

2. Of or pertaining to a natural order (Umbelliferae) of plants, of which the parsley, carrot, parsnip, and fennel are well-known examples.