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procto

[prok-toh]
noun, plural proc·tos. Informal.
  1. proctosigmoidoscopy.
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Origin of procto

by shortening

procto-

  1. a combining form meaning “anus,” “rectum,” used in the formation of compound words: proctoscope.
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Also especially before a vowel, proct-.

Origin of procto-

< Greek prōkto-, combining form of prōktós
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for procto

procto-

before a vowel proct-

combining form
  1. indicating the anus or rectumproctology
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Word Origin

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

procto in Medicine

procto-

pref.
  1. Anus or rectum:proctalgia.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.