a combining form used, with the meaning “orchid,” “testicle,” in the formation of compound words: orchidology; orchidotomy.
Origin of orchido-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.