IPA: /ˈreɪdərˌskoʊp/
KK: /ˈrādərˌskōp/
A screen that displays the signals received by a radar system, showing information about objects detected by the radar.
The pilot used the radarscope to track the incoming aircraft.
Radarscope → It is formed from "radar" (an acronym for Radio Detection and Ranging, meaning a system for detecting objects using radio waves) and "scope" (from Greek "skopein", meaning to look or examine). The word "radarscope" refers to a device that allows one to look at or examine objects detected by radar.
Think of 'radar' as a system that helps you 'look' ('scope') at objects using radio waves — that's what a radarscope does.