Phrase guide

motion detector

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A device used in security systems that can alert the user of the presence of a moving object.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

7 source translations are retained for this English entry.

  • Chinese Mandarin: 動作感應器 /动作感应器 (dòngzuò gǎnyīngqì) — device used in security systems
  • Finnish: liiketunnistin — device used in security systems
  • German: Bewegungsmelder — device used in security systems
  • Hungarian: mozgásérzékelő — device used in security systems
  • Irish: brathadóir gluaiseachta — device used in security systems
  • Italian: sensore di movimento — device used in security systems
  • Russian: дете́ктор движе́ния (detéktor dvižénija) — device used in security systems