| 释义 |
peri·sperm
\ˈperəˌspərm\ noun
Etymology: French périsperme, from péri- peri- + -sperme -sperm
1. : nutritive tissue of a seed derived from the nucellus and deposited external to the embryo sac — distinguished from endosperm
2. : nutritive tissue of a seed that includes both endosperm and perisperm — not used technically
• peri·sperm·al \| ̷ ̷ ̷ ̷|spərməl\ or peri·sper·mic \-mik\ adjective |