RhymeZone: connex definitions

Definitions of connex:

verb: (obsolete, transitive) To connect; to fasten together.
verb: (obsolete, intransitive) To connect; to become joined or united.
noun: (algebra) A correspondence between a projective space and its dual.
adjective: (set theory) Such that, for all x and y in X, and for a binary relation R, either or both of xRy and yRx hold(s).

(Definitions from Wiktionary)