episperm Meaning, Definition & Usage

  1. noun protective outer layer of seeds of flowering plants
    testa; seed coat.

WordNet

Ep"i*sperm noun
Etymology
Pref. epi- + Gr. seed: cf. F. épisperme.
Definitions
  1. (Bot.) The skin or coat of a seed, especially the outer coat. See Testa.

Webster 1913