母语

母語
mǔyǔ
  1. native language
  2. mother tongue
  3. (linguistics) parent language

CEDICT

linguistics

Entry Composition

1 母 mǔ
  1. mother
  2. elderly female relative
  3. origin
  4. source
  5. (of animals) female
2 语 yǔ
  1. dialect
  2. language
  3. speech