a combining form meaning “milk,” used in the formation of compound words: galactopoietic.
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Also especially before a vowel, galact-.
Origin of galacto-
< Greek galakto-, combining form of galakt-, stem of gála milk
Words nearby galacto-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for galacto-
before a vowel galact-
milk or milkygalactometer
Word Origin for galacto-
from Greek galakt-, gala
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 galacto-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.