ANGIOSPERM
angiosperm, flowering plant
(noun) plants having seeds in a closed ovary
Source: WordNet® 3.1
Etymology
Noun
angiosperm (plural angiosperms)
(botany) Any plant of the clade Angiosperms, characterized by having ovules enclosed in an ovary; a flowering plant.
Source: Wiktionary
An"gi*o*sperm, n. Etym: [Angio- + Gr. (Bot.)
Definition: A plant which has its seeds inclosed in a pericarp.
Note: The term is restricted to exogenous plants, and applied to one
of the two grand divisions of these species, the other division
including gymnosperms, or those which have naked seeds. The oak,
apple, beech, etc., are angiosperms, while the pines, spruce,
hemlock, and the allied varieties, are gymnosperms.
Source: Webster’s Unabridged Dictionary 1913 Edition