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angiosperm Meaning, Definition & Usage

  1. noun plants having seeds in a closed ovary
    flowering plant.
WordNet

An"gi*o*sperm noun
Etymology
Angio- + Gr. , , seed.
Definitions
  1. (Bot.) A plant which has its seeds inclosed in a pericarp. ✍ 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.

Webster 1913