レーダーreedaa

Common
レーダreeda
Definitions
  1. nounradar
    その船ふねにはレーダーが装備そうびされていた。↗
    The boat was equipped with radar.
Synonyms & antonyms
  • Synonym電波探知機でんぱたんちきWrittenWritten/formal prose name for radar, a kanji rendering of the loanword; used less often. 「レーダー」 is the everyday word and also appears in figurative uses like 「恋愛レーダー」.
  • Synonym電探でんたんNeutralShort for 「電波探知機」; an old WWII military term, now rare. Today 「レーダー」 is the usual word.

Use 「レーダー」 in almost all contexts, including figurative ones like 「恋愛レーダー」. 「電波探知機」 is its written/formal kanji name, seen mostly in prose; 「電探」 is an old WWII military abbreviation you will rarely need.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 電波でんぱ(マイクロ波まいくろは)を目標もくひょう物ぶつに発射はっしゃし、その反射はんしゃしてきた電波でんぱを受信じゅしんして目標もくひょう物ぶつの大おおきさや方向ほうこう、位置いちなどを探知たんちするための装置そうち。
English equivalents

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