せき
赤
がい
外

adjectival noun or quasi-adjective, takes genitive case の

  1. infrared.

Variations

Pronunciation Kanji Kana Is Common
せき
赤
がい
外
 赤外 せきがい

Contained Kanji Breakdown

red
あか　セキ　あ (1st, N4)
soil, earth, ground
ド　つち　は (1st, N5)
fire, fire radical (no. 86)
ヒョウ　カ
outside
ガイ　そと　はず.す (2nd, N5)
evening
ゆう　セキ　ゆ (1st, N4)
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク　うらな.う　うらない (Kentei Pre-1)