生物時計

Japanese
Kanji in this term
生 物 時 計
せい
Grade: 1		 ぶつ
Grade: 3		 と > ど
Grade: 2		 けい
Grade: 2
on’yomi irregular

Etymology

From 生物 (“biological”) +‎ 時計 (“clock”). The tokei changes to dokei as an instance of rendaku (連濁).

Pronunciation
  • (Tokyo) せーぶつど​けー [sèébútsúdóꜜkèè] (Nakadaka – [5])[1]
  • IPA(key): [se̞ːbɯ̟ᵝt͡sɨᵝdo̞ke̞ː]

Noun

生(せい)物(ぶつ)時(ど)計(けい) • (seibutsudokei) 

  1. biological clock
    Synonym: 体内時計

References
  1. Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tōkyō: Sanseidō, →ISBN
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