反応

See also: 反應

Japanese
Kanji in this term
反 応
はん
Grade: 3		 おう > のう
Grade: 5
kan’on goon
Alternative spelling
反應 (kyūjitai)

Etymology

Coined by Japanese educator and zoologist Iwakawa Tomotarō in 1884 in his work 生物学語彙 (Seibutsugaku goi, “A biological vocabulary in English, Latin and Japanese”) as a translation of English reaction.[1][2]

The ō reading for 応 changes to nō as an instance of renjō (連声).

Pronunciation

Noun

反(はん)応(のう) • (hannō) ←はんおう (fan'ou)?

  1. chemical reaction
  2. reaction, response
  3. feedback

Derived terms
  • 反(はん)応(のう)式(しき) (hannōshiki)
  • 反(はん)応(のう)速(そく)度(ど) (hannō sokudo)
  • 反(はん)応(のう)度(ど) (hannōdo)
  • 反(はん)応(のう)度(ど)事(じ)故(こ) (hannōdo jiko)
  • 反(はん)応(のう)熱(ねつ) (hannōnetsu)

Verb

反(はん)応(のう)する • (hannō suru) ←はんおう (fan'ou)?intransitive suru (stem 反(はん)応(のう)し (hannō shi), past 反(はん)応(のう)した (hannō shita))

  1. to react chemically
  2. to respond, to react
  3. be responsive, be sensitive

Conjugation
Conjugation of "反応する" (See Appendix:Japanese verbs.)
Katsuyōkei ("stem forms")
Mizenkei ("imperfective") 反応し はんのうし hannō shi
Ren’yōkei ("continuative") 反応し はんのうし hannō shi
Shūshikei ("terminal") 反応する はんのうする hannō suru
Rentaikei ("attributive") 反応する はんのうする hannō suru
Kateikei ("hypothetical") 反応すれ はんのうすれ hannō sure
Meireikei ("imperative") 反応せよ¹
反応しろ²		 はんのうせよ¹
はんのうしろ²		 hannō seyo¹
hannō shiro²
Key constructions
Passive 反応される はんのうされる hannō sareru
Causative 反応させる
反応さす		 はんのうさせる
はんのうさす		 hannō saseru
hannō sasu
Potential 反応できる はんのうできる hannō dekiru
Volitional 反応しよう はんのうしよう hannō shiyō
Negative 反応しない はんのうしない hannō shinai
Negative continuative 反応せず はんのうせず hannō sezu
Formal 反応します はんのうします hannō shimasu
Perfective 反応した はんのうした hannō shita
Conjunctive 反応して はんのうして hannō shite
Hypothetical conditional 反応すれば はんのうすれば hannō sureba
¹ Written imperative

² Spoken imperative

Descendants
  • → Chinese: 反應／反应 (fǎnyìng)[4]
  • → Korean: 반응 (baneung)
  • → Vietnamese: phản ứng

References
  1. Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tōkyō: Sanseidō, →ISBN
  2. “反応”, in 日本国語大辞典 (Nihon Kokugo Daijiten, “Nihon Kokugo Daijiten”)‎ (in Japanese), concise edition, Tōkyō: Shogakukan, 2000
  3. Yamada, Tadao et al., editors (2011), 新明解国語辞典 [Shin Meikai Kokugo Jiten] (in Japanese), Seventh edition, Tōkyō: Sanseidō, →ISBN
  4. 汉语外来词词典 [Chinese Loanword Dictionary] (in Chinese), 1984, page 97
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