赤外線

From 赤 (seki, “red”) +‎ 外 (gai, “outside”) +‎ 線 (sen, “ray”). Compare Chinese 紅外線／红外线 (hóngwàixiàn).

• (Tokyo) せきがいせん [sèkígáíséń] (Heiban – [0])[1][2][3]
• IPA^(key): [se̞kʲiɡa̠isẽ̞ɴ]

赤(せき)外(がい)線(せん) • (sekigaisen) ^{←せきぐわいせん (sekigwaisen)?}

1. infrared radiation
2. Short for 赤外線通信 (sekigaisen tsūshin, “IR communication”).
   • 2011, 櫻井千姫 [Sakurai Chihime], 天国までの49日間, 2nd edition, スターツ出版, page 26:

     メアド教(おし)えてー、赤外線(せきがいせん)しよー、とまとわりついてくる女(おんな)の子(こ)たち

     meado oshietē, sekigaisen shiyō, to matowaritsuitekuru onna no ko-tachi

     girls who surrounded him saying things like 'tell me your email!' and 'let's IR!'

• → Korean: 적외선 (jeogoeseon)

• 紫(し)外(がい)線(せん) (shigaisen, “ultraviolet radiation”)

赤外線 • (jeogoeseon or McCune-Reischauer: chŏgoesŏn or Yale: cek.oysen) (hangeul 적외선)

1. Hanja form^? of 적외선 (“infrared radiation”).