Dictionary/赤外線せきがいせんSekigaisen赤外線 (Sekigaisen) is a Japanese noun meaning “infrared rays, infrared radiation”.Meaningsnouninfrared rays; infrared radiationKanji in 赤外線赤red外outside線lineRelated words外outside他another place余所another place外outside ...他にelse以外excluding赤いred赤ちゃんbaby意外unexpected外すto remove無線radio (communication)法外exorbitant