嫡子 [－－]

Jyutping dik1 zi2
Pinyin dí zǐ

Definitions (CC-CEDICT)
  1. son of first wife
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. noun, historical, specifically
    son of one's legal wife (as opposed to a concubine)
  2. noun, historical
    son of one's legal wife (as opposed to a concubine)