phonemics

[fuh-nee-miks, foh-] /fəˈni mɪks, foʊ-/
noun, (used with a singular verb)
1.
the study of phonemes and phonemic systems.
2.
the phonemic system of a language, or a discussion of this:
English phonemics.
Origin
1935-40; phoneme + -ics
Related forms
phonemicist
[fuh-nee-muh-sist, foh-] /fəˈni mə sɪst, foʊ-/ (Show IPA),
noun
British Dictionary definitions for phonemics

phonemics

/fəˈniːmɪks/
noun
1.
(functioning as sing) that aspect of linguistics concerned with the classification, analysis, interrelation, and environmental changes of the phonemes of a language
Derived Forms
phonemicist, noun