Crossword Genius

Protein-building acid (5)

Ross

I believe the answer is:

amino

'protein-building acid' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for amino that I've seen before include "Acid found in proteins" , "- - acids" , "Minor insult; slim" , "sort of acid?" , "(Protein constituent) acid" .)

I've seen this clue in the LA Times and 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.