Eye part used in biometrics (4)

I believe the answer is:

iris

(Other definitions for iris that I've seen before include "Fleur-de-lys" , "pupil's governor" , "Flower - rainbow" , "Pupil's place?" , "Flag or flower in the eye" .)

I've seen this clue in the USA Today.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.