To come apart into long sharp fragments.
The tall tree splintered during the storm.
To cause to break apart into long sharp fragments.
His third kick splintered the door.
(of a group) To break, or cause to break, into factions.
The government splintered when the coalition members could not agree.
To fasten or confine with splinters, or splints, as a broken limb.
The process or result of something being splintered.