發紺

发绀
fāgàn
cyanosis (blue skin due to lack of oxygen in blood)

CEDICT

  1. (medicine) to be cyanotic
  2. to be cyanotic

Wiktionary

因身體缺少氧氣，而致嘴脣及四肢指端呈現紫色。

重編國語辭典

接近皮膚表面的血管出現脫氧後的血紅蛋白，令皮膚或黏膜帶青色的徵狀。

維基詞典

Entry Composition

1 發 fā
  1. to send out
  2. to show (one's feeling)
  3. to issue
  4. to develop
  5. to make a bundle of money
  6. classifier for gunshots (rounds)
2 紺 gàn violet or purple