a combining form meaning “sac,” used in the formation of compound words: ascomycete.
Also especially before a vowel, asc-.

Origin of asco-

< Greek asko-, combining form of askós wineskin, bladder, belly Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for asco-


combining form

indicating a bladder or ascusascomycete

Word Origin for asco-

from Greek askos bladder
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