Definition of graphemics in US English:

graphemics

noun

Linguistics
  • See grapheme

    • ‘The sixteen articles are organized into sections on phonology, morphology, syntax, semantics, discourse analysis, historical/comparative linguistics, and graphemics.’
    • ‘Furthermore, it is possible to search the corpus according to different beginning graphemics of the words.’
    • ‘This paper will address the relationship between 'school orthography' and graphemics.’

Pronunciation

graphemics

/ɡraˈfēmiks/