オルト

Japanese

Pronunciation
    • IPA(key): [o̞ɾɯ̟ᵝto̞]

    Etymology 1

    From Ancient Greek ὀρθός (orthós, “straight”).[1][2]

    Noun

    オルト • (oruto) 

    1. ortho-
      1. (chemistry) a benzene ring with two substituents in adjacent positions
        Antonyms: メタ, パラ
      2. (chemistry) an oxyacid with a relatively large proportion of water
        オルト燐(りん)酸(さん) ― oruto-rinsan ― orthophosphoric acid

    Etymology 2

    Shortening of オルターナティブ (orutānatibu),[3] from English alternative.

    Noun

    オルト • (oruto) 

    1. alt, alternative, alternate
      Synonym: オルタナ

    References
    1. 1995, 大辞泉 (Daijisen) (in Japanese), Tōkyō: Shogakukan, →ISBN
    2. “オルト”, in 日本国語大辞典 (Nihon Kokugo Daijiten, “Nihon Kokugo Daijiten”)‎ (in Japanese), 2nd edition, Tōkyō: Shogakukan, 2000, →ISBN
    3. 2018, デジタル版イミダス (Digital Imidas) (in Japanese), Tōkyō: SHUEISHA
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