正室

zhèngshì
primary wife (in contrast to concubine); legal wife

CEDICT

  1. (historical) eldest son born by one's legal wife
  2. (historical) legal wife
  3. (humorous) lawfully wedded wife (as opposed to a mistress)
  4. eldest son born by one's legal wife
  5. lawfully wedded wife (as opposed to a mistress)
  6. legal wife

Wiktionary

  1. 嫡妻，元配妻子。
  2. 嫡子。

重編國語辭典

Entry Composition

1 正 zhèng
  1. straight
  2. upright
  3. proper
  4. main
  5. principal
  6. to correct
  7. to rectify
  8. exactly
  9. just (at that time)
  10. right (in that place)
  11. (math.) positive
2 室 shì
  1. room
  2. work unit
  3. grave
  4. scabbard
  5. family or clan
  6. one of the 28 constellations of Chinese astronomy