DUPLEXING

Verb

duplexing

present participle of duplex

Source: Wiktionary

DUPLEX

Du"plex, a. Etym: [L., fr. duo two + plicare to fold. See Two, and Complex.]

Definition: Double; twofold. Duplex escapement, a peculiar kind of watch escapement, in which the scape-wheel has two sets of teeth. See Escapement.

– Duplex lathe, one for turning off, screwing, and surfacing, by means of two cutting tools, on opposite sides of the piece operated upon.

– Duplex pumping engine, a steam pump in which two steam cylinders are placed side by side, one operating the valves of the other.

– Duplex querela Etym: [L., double complaint] (Eccl. Law), a complaint in the nature of an appeal from the ordinary to his immediate superior, as from a bishop to an archbishop. Mozley & W.

– Duplex telegraphy, a system of telegraphy for sending two messages over the same wire simultaneously.

– Duplex watch, one with a duplex escapement.

Source: Webster’s Unabridged Dictionary 1913 Edition