(electricity) An automatic circuit breaker that rapidly disconnects an electric circuit when the imbalance of the currents going through it exceeds a specific value.

(anatomy) Of or pertaining to the vomer.

(organic chemistry) Relating to a polyacetylene

(Britain, slang) Synonym of bottom: a homosexual man who is penetrated or prefers to be penetrated during anal sex. / Used other than figuratively or idiomatically: see shirt, lifter.