Episperm
The Century Dictionary and Cyclopedia
noun.
In
botany
, the testa or outer integument of a seed. The figure shows the episperm, the endopleura, and the endosperm.
the GNU version of the Collaborative International Dictionary of English
noun.
The skin or coat of a seed, especially the outer coat. See
testa
.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
The outer, protective layer of the
seed
of a
flowering plant
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
protective outer layer of seeds of flowering plants
Word Usage
"Under this tegument is found a very thin, colorless membrane, which, with the testa or episperm, forms two per cent. of the weight of the wheat."
Hypernym
Words that are more generic or abstract
reproductive structure
variant
testa