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perisperm |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Perisperm \Per"i*sperm\, n. [F. p['e]risperme. See {Peri-}, and {Sperm}.] (Bot.) The albumen of a seed, especially that portion which is formed outside of the embryo sac. -- {Per`i*sper"mic}, a.