- a combining form meaning “anus,” “rectum,” used in the formation of compound words: proctoscope.
Also especially before a vowel, proct-.
Origin of procto-
< Greek prōkto-, combining form of prōktós
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before a vowel proct-
- indicating the anus or rectumproctology
from Greek prōktos
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
- Anus or rectum:proctalgia.
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