Definition of secondary articulation in English:

secondary articulation

noun

Phonetics
  • An additional feature in the pronunciation of a consonant (besides the actual place of articulation), such as palatalization or lip-rounding.

    • ‘I'd describe the sound as a bilabial nasal with a secondary articulation and falling tone.’
    • ‘In these cases the one with the greater constriction is said to be the primary articulation and the one with the more open constriction is referred to as a secondary articulation.’