a combining form meaning “growth,” “increase,” used in the formation of compound words: auxochrome.
Also especially before a vowel, aux-.
Origin of auxo-
< Greek aúx(ein) to grow, increase (variant of auxánein) + -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for auxo-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.