[ ak-ruh-sohm ]
/ ˈæk rəˌsoʊm /
noun Cell Biology.
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.
Words nearby acrosome
OTHER WORDS FROM acrosomeac·ro·so·mal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for acrosome
/ (ˈækrəˌsəʊm) /
a cap-like structure on the tip of a spermatozoon that releases enzymes on encountering the ovum allowing fusion with the ovum in the sexual reproductive process; this part of the process is known as the acrosome reaction
Word Origin for acrosome
C19: from acro- + -some ³
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for acrosome
[ ăk′rə-sōm′ ]
Other words from acrosomeac′ro•so′mal (-sō′məl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.