Definitions

1. noun

A type of glomus cell found in the carotid and aortic bodies that responds to changes in oxygen levels in the blood.

“The iridiocytes in the carotid bodies detected the drop in oxygen levels and sent a signal to the brain.”

2. noun

A type of light-sensitive cell found in some invertebrates that is involved in the detection of light.

“The iridiocytes in the eye of the squid help it to navigate through the dark waters.”