1. The outer integument of a seed.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• wpisperm,
• spisperm,
• dpisperm,
• rpisperm,
• 4pisperm,
• 3pisperm,
• eoisperm,
• elisperm,
• e-isperm,
• e0isperm,
• epusperm,
• epispern,
• epissperm,
• epispurm,
• episperms,
• epispems,
• epispherm,
• epispermms,
• episphorm,
• epispherme

The adjective form of the word "episperm" is "epispermal".

The plural of the "episperm" can be the "episperms".

The singular of the "episperm" can be the "episperm".