赤せき外がい線せんTop 15000MeaningsNoun1. infrared rays; infrared radiationKanji used赤red外outside線linePitch accentせきがいせんUsed in vocabulary赤せき外がい線せん写しゃ真しんinfrared photographyNoun赤せき外がい線せん通つう信しんinfrared data communicationNoun赤せき外がい線せん電でん球きゅうinfrared lampNoun赤せき外がい線せん療りょう法ほうinfrared therapyNoun