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VocabJLPT N1

Infrared

Noun

Definitions

1. infrared rays
2. infrared radiation
3. Infrared

This noun refers to a type of electromagnetic radiation with wavelengths longer than visible light but shorter than microwaves — known in English as "infrared rays." It is commonly encountered in contexts like remote controls, thermal cameras, and heat lamps.

Example sentences

Sentence 1

Ugh, the infrared sensor is way too sensitive — it's actually a problem!

Sentence 2

The infrared sensor picked me up at the entrance and the light came on.

Sentence 3

Oh no, I left the infrared remote under a pile of laundry!

Sentence 4

Where's the cheapest place to buy an infrared sensor?

Sentence 5

He said, "An infrared camera can see even in total darkness."