[ 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.
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OTHER WORDS FROM acrosomeac·ro·so·mal, adjective
Words nearby acrosome
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for acrosome
Spermatids containing both the chromatin nucleolus (n) and the odd chromosome (x), a the acrosome.
The acrosome seems to develop directly out of the cytoplasm.
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.