Crossword Genius

Pathway for oxygenation (4)

Ross

I believe the answer is:

vein

(Other definitions for vein that I've seen before include "Irregular streak of colour" , "Rock fissure or minerals therein" , "Distinctive style" , "Deposit of mineral" , "Blood-carrying vessel" .)

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.