Crossword Genius

For a short time impetus is produced without any hesitation (6)

Ross

I believe the answer is:

moment

I'm a little stuck... Click here to teach me more about this clue!

'for a short time' is the definition.
(moment is a kind of short time)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for moment that I've seen before include "Brief period of time" , "tick" , "Jiffy" , "Brief second" , "Occasion" .)

I've seen this clue in The Irish Independent.
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.