天癸

tiānguǐ
  1. (TCM) menstruation
  2. period

CEDICT

tcm

Entry Composition

1 天 tiān
  1. day
  2. sky
  3. heaven
2 癸 guǐ
  1. tenth of the ten Heavenly Stems 十天干 shítiāngān
  2. tenth in order
  3. letter "J" or Roman "X" in list "A, B, C", or "I, II, III" etc
  4. ancient Chinese compass point: 15°
  5. deca