分母

fēnmǔ
(math.) denominator of a fraction

CEDICT

math

Entry Composition

1 分 fēn
  1. to divide; to separate
  2. to distribute; to allocate
  3. to distinguish (good and bad)
  4. (bound form) branch of (an organization); sub- (as in 分局 fēnjú)
  5. fraction
  6. one tenth (of certain units)
  7. unit of length equivalent to 0.33 cm
  8. minute (unit of time)
  9. minute (angular measurement unit)
  10. a point (in sports or games)
  11. 0.01 yuan (unit of money)
2 母 mǔ
  1. mother
  2. elderly female relative
  3. origin
  4. source
  5. (of animals) female