子域

zǐyù
subfield (math.)

CEDICT

math

Entry Composition

=1 子 zǐ
  1. son
  2. child
  3. seed
  4. egg
  5. small thing
  6. 1st earthly branch: 11 p.m.–1 a.m., midnight, 11th solar month (7th December to 5th January), year of the rat
  7. viscount, fourth of five orders of nobility 五等爵位 wǔděngjuéwèi
  8. ancient Chinese compass point: 0° (north)
  9. subsidiary; subordinate; (prefix) sub-
=1 子 zi noun suffix, as in 椅子 yǐzi "chair"
2 域 yù
  1. field
  2. region
  3. area
  4. domain (taxonomy)