uniselector

Etymology

From uni- + selector.

uniselector means A type of stepping switch able to select on only one axis, formerly widely used in telephone exchanges. Lexicurio rates it Sui generis — a strength score of 89 out of 100.

noun

A type of stepping switch able to select on only one axis, formerly widely used in telephone exchanges.“Relays and uniselectors of types installed in many telephone exchanges are used in the selective ringing dial system.”