四渎

Traditional form:

四瀆

Pinyin (reading):

sìdú

Definitions:

• (archaic) the four rivers (Yangtze 長江／长江 ( Cháng Jiāng), Yellow 黃河／黄河 ( Huáng Hé), Huai 淮河 ( Huái Hé), Ji 濟水／济水 ( Jǐ Shuǐ))
• (TCM) acupuncture point SJ-9

Characters:

• 四 - four
• 渎 - ditch, sluice, gutter, drain

Traditional characters:

• 四 - four
• 瀆 - ditch, sluice, gutter, drain