dquarasr
Registered
In conversation among pool enthusiasts it might be strict but in general conversation they are interchangeable. Per Mirriam-Webster (read the full description):
www.merriam-webster.com
Maybe it depends on whether one is playing billiards or pool?

Definition of CAROM
a shot in billiards in which the cue ball strikes each of two object balls; a shot in pool in which an object ball strikes another ball before falling into a pocket; a rebounding especially at an angle… See the full definition
Maybe it depends on whether one is playing billiards or pool?