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radiolocator

American  
[rey-dee-oh-loh-key-ter, -loh-key-ter] / ˈreɪ di oʊˌloʊ keɪ tər, -loʊˌkeɪ tər /

noun

British.
  1. radar.


Etymology

Origin of radiolocator

First recorded in 1940–45; radio- + locator