四渎

四瀆
sìdú
  1. (archaic) the four rivers (Yangtze 长江 Cháng Jiāng, Yellow 黄河 Huáng Hé, Huai 淮河 Huái Hé, Ji 济水 Jǐ Shuǐ)
  2. (TCM) acupuncture point SJ-9

CEDICT

archaic tcm

Entry Composition

1 四 sì
  1. four
  2. 4
2 渎 dú
  1. disrespectful
  2. (literary) ditch