episperm

episperm

(ˌɛpɪˈspɜːm) n (Botany) the protective outer layer of certain seeds

Thesaurus

Noun

1.

episperm - protective outer layer of seeds of flowering plantsseed coat, testareproductive structure - the parts of a plant involved in its reproductionseed - a mature fertilized plant ovule consisting of an embryo and its food source and having a protective coat or testa