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Jyutping jing3 gik1 faan2 jing3
Pinyin yìng jī fǎn yìng

Definitions (Wiktionary)
  1. noun
    stress reaction

應激反應 [应--应]

Jyutping
Pinyin yìng jī fǎn yìng

Definitions (CC-CEDICT)
  1. (physiological etc) stress