Definition of morphophoneme in English:

morphophoneme

noun

Phonetics
  • Any of the variant forms of a phoneme as determined by the context in which it is used.

    • ‘This tendency of leaving out the morphophoneme " t’ becomes more and more common.’
    • ‘Stress has its own tier, and I will identify this feature specifically, since stress will determine the choice of the morphophoneme.’
    • ‘They are complementary, since for each environment of the unit, its morphophonemes indicate the segments in the corresponding parts of that member of the morpheme which occurs in that environment.’

Pronunciation

morphophoneme

/ˌmôrfəˈfōˌnēm/