epispermic
/ɛpɪˈsɜrmɪk/Definitions
1. adjective
Relating to or resembling an episperm, especially a spore or seed coat.
“The epispermic layer on the seed coat protected the embryo from environmental stress.”
2. noun
A spore or seed coat, especially one that has developed from an episperm.
“The epispermic structure of the plant seed was crucial for its survival.”