轉陰 [转阴]

Jyutping zyun3 jam1
Pinyin zhuǎn yīn

Definitions (Wiktionary)
  1. verb, of a test result
    to turn from positive to negative
  2. verb, literally
    to turn cloudy
  3. verb, figuratively, literally
    to turn cloudy
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    天突然转阴了。
    天突然轉陰了。
    tiān tū rán zhuǎn yīn le 。
    • All of a sudden the sky became overcast.
    • The sky suddenly became overcast.
    • Suddenly the sky clouded over.