acrosome: Meaning and Definition of

ac•ro•some

Pronunciation: (ak'ru-sōm"), [key]
— n. Cell Biol.
  1. an organelle covering the head of animal sperm and containing enzymes that digest the egg cell coating, thus permitting the sperm to enter the egg.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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