A device designed to reflect radar waves well in order to make it clearly visible on radar screens. Radar reflectors can be installed for example in boats or signal buoys.

A weatherproof enclosure used to protect a radar antenna.

(idiomatic) Without attracting notice; in an undetected or secretive manner.

(idiomatic) Unlikely to happen or be important in the near future, or tending to escape detection or attention.

any radar that is capable of estimating the position of a target based on the return of a single pulse from a cluster of simultaneous beams

A receive-only radar that uses ambient radio signals for search, tracking, surveillance, identification, guidance and mapping.

The application of radar to the study of the atmosphere, and to the observation and prediction of weather.

(astronomy) A technique that uses radar echoes to examine bodies within the solar system, obtaining information about size, shape, topography, surface density, spin etc.

A hand-held (or mounted) device that emits a radar beam and uses the Doppler effect to measure the velocity of moving objects (especially traffic)

A roadside location, manned by police or similar officials, where a device that emits a radar beam is used to monitor the speeds of motor vehicles in order to apprehend motorists in violation of the speed limit.