Meaning of “trim” - Learner’s Dictionary

trim

noun uk us /trɪm/
CUT [ no plural ]

If something has a trim, it is cut so that it looks tidy:

The hedge needs a trim.
DECORATION [ U, no plural ]

decoration that is added to something such as clothes or a car:

The car has a CD player, sunroof, and leather trim.

(Definition of “trim noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)