Crossword Genius

It might be in the form of a thumbnail (3)

Ross

I believe the answer is:

bio

(Other definitions for bio that I've seen before include "Prefix denotes life" , "life described in print" , "A life's work" , "Prefix meaning life, of living things" , "Prefix or combining form meaning of living things" .)

I've seen this clue in The New York Times.
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.