S: (n) lens, electron lens (electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons)
S: (n) mixer (electronic equipment that mixes two or more input signals to give a single output signal)
S: (n) modem ((from a combination of MOdulate and DEModulate) electronic equipment consisting of a device used to connect computers by a telephone line)
S: (n) monitor (a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble)
S: (n) monitor (electronic equipment that is used to check the quality or content of electronic transmissions)
S: (n) scrambler (electronic equipment that makes speech unintelligible during transmission and restores it at reception)
S: (n) set (any electronic equipment that receives or transmits radio or tv signals) "the early sets ran on storage batteries"
S: (n) tape deck (electronic equipment for making or playing magnetic tapes (but without amplifiers or speakers); a component in an audio system)
S: (n) tape player (electronic equipment for playing back magnetic tapes)
S: (n) telephone, phone, telephone set (electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds) "I talked to him on the telephone"
S: (n) television, television system (a telecommunication system that transmits images of objects (stationary or moving) between distant points)
S: (n) monitor (a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble)
S: (n) monitor, monitor lizard, varan (any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles)
Verb
S: (v) monitor, supervise (keep tabs on; keep an eye on; keep under surveillance) "we are monitoring the air quality"; "the police monitor the suspect's moves"
S: (v) monitor (check, track, or observe by means of a receiver)