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Collider

//kəˈlaɪdɚ// noun

Noun

1
Any of several forms of particle accelerator in which two opposing beams of particles collide.
2
an accelerator in which two beams of particles are forced to collide head on wordnet
3
A node in a causal graph that has at least two incoming edges.
4
A model of the shape of an object for purposes of collision detection.
"The race controller will check for a trigger hit between this player's collider and the start/finish line trigger, but this script has an OnTriggerEnter function to check for triggers used to force a respawn."

From collide + -er.

Unscramble this word: collider