Meaning of “splinter” - Learner’s Dictionary

splinter

noun [ C ] uk us /ˈsplɪntər/

a small, sharp piece of wood, glass, etc which has broken from a large piece:

I've got a splinter in my finger.
a splinter group

a small group of people that forms after leaving a larger organization, such as a political party

splinter verb [ I ]

to break into small, sharp pieces

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