US /ˈɹeɪˌdɑɹ/ UK /ˈɹeɪdɑː/
noun verb Freq #4125

Meanings

  1. 1
    noun

    A system that uses radio waves to find the position and speed of distant objects such as ships and planes.

    The pilot spotted the storm on the plane's radar.

  2. 2
    noun

    A natural ability to notice or sense something.

    She has a good radar for spotting talented young players.

Thesaurus

Synonyms
1 noun · a system that uses radio... radiolocation
Word family
Forms radars
Derived forms antiradargaydargeoradarhetdarlidarnonradarphotoradarpsrraconradargramradarkymogramradarless

Etymology

The noun is derived from RADAR by anacronymic evolution. RADAR is an acronym of ra(dio) d(etection) a(nd) r(anging) which was coined by Lieutenant-Commander Samuel M. Tucker and Lieutenant-Commander F. R. Furth of the United States Navy in November 1940. The verb is probably derived from the noun.

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