a combining form meaning “seed”; used with this meaning and as a combining form of sperm1 in the formation of compound words: spermatogonium.
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Also especially before a vowel, spermat-.
Words nearby spermato-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for spermato-
spermo- before a vowel spermat- or sperm-
Word Origin for spermato-
from Greek sperma, spermat-, seed; see sperm 1
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 spermato-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.