irido-

1. 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.

irido-

combining_form

1. denoting the iris of the eye or the genus of plants

   iridaceous

2. denoting a rainbow

   iridescent

Word History and Origins

Origin of irido-¹

Combining form representing New Latin, Latin, Greek īrid- (stem of îris ) rainbow, iris, etc.; iris

Word History and Origins

Origin of irido-¹

from Latin irid-, iris