Columbella :: Columbella (n.) A genus of univalve shells, abundant in tropical seas. Some species, as Columbella mercatoria, were formerly used as shell money..
Umbellar :: Umbellar (a.) Of or pertaining to an umbel; having the form of an umbel.
Umbellated :: Umbellated (a.) Bearing umbels; pertaining to an umbel; umbel-like; as, umbellate plants or flowers..
Umbellet :: Umbellet (n.) A small or partial umbel; an umbellule.
Umbellic :: Umbellic (a.) Pertaining to, or obtained from, certain umbelliferous plants; as, umbellic acid..
Umbellifer :: Umbellifer (n.) A plant producing an umbel or umbels.
Umbelliferone :: Umbelliferone (n.) 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 :: Umbelliferous (a.) Of or pertaining to a natural order (Umbelliferae) of plants, of which the parsley, carrot, parsnip, and fennel are well-known examples..
Umbellularia :: Umbellularia (n.) A genus of deep-sea alcyonaria consisting of a cluster of large flowerlike polyps situated at the summit of a long, slender stem which stands upright in the mud, supported by a bulbous base..