- a combining form of Latin origin used, with the meanings “rainbow,” “iridescent,” “iris (of the eye),” “Iris (the genus),” and “iridium,” in the formation of compound words: iridopupillary; iridosmine; iridotomy.
Also especially before a vowel, irid-.
Origin of irido-
combining form representing New Latin, Latin, Greek īrid- (stem of îris) rainbow, iris, etc.; see iris
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
before a vowel irid-
- denoting the iris of the eye or the genus of plantsiridaceous
- denoting a rainbowiridescent
from Latin irid-, iris
- Iris of the eye:iridectomy.