Meaning of quadruplex | Babel Free

Definitions

1. Having four components.
   not-comparable
2. Of or relating to a system in telegraphy by which four messages (two in each direction) can be sent on one wire simultaneously.
   not-comparable
3. Of or relating to an early videotape format with four magnetic record/reproduce heads mounted on a headwheel spinning transversely across the tape.
   not-comparable

CEFR level