Crossword Genius

Resistance units (4)

Ross

I believe the answer is:

ohms

'resistance units' is the definition.
(ohm is a kind of resistance unit)

This is the entire clue.

(Other definitions for ohms that I've seen before include "Frank on official post" , "Electricity" , "measures of resistance" , "Frank marking" , "Letters with official status in correspondence" .)

I've seen this clue in The Times, the King Feature Syndicate 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.