Printing measures longer than ens (3)

I believe the answer is:

ems

(Other definitions for ems that I've seen before include "German river" , "Printers' measures" , "Units of print measure" , "Units used in printing" , "German city" .)

I've seen this clue in the LA 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.