disjunctor

plural disjunctors

1. biologyA small, temporary body between the conidia of some fungi.
2. A kind of electrical circuit breaker.

   The next thing that we must turn our attention to is the disjunctor, or apparatus for breaking both the circuits simultaneously. This consists of a hinged frame, which can be given a sudden movement by means of an electro-magnet […]

   1891, The Journal of the Iron and Steel Institute, volume 41, number 2, page 18