The word 'phonemicses' refers to the study of phonemes, which are the smallest units of sound in a language. There are several synonyms for this term, including phonology, sound structure, and phonemics. Phonology refers to the study of sounds and their systematic use in language, including the relationships between and among phonemes. Sound structure refers to the rules that govern the way sounds are combined to form words in spoken language. Phonemics describes the relationship between phonemes and their functions in language, including how they contribute to meaning and how they are used in speech sounds. Overall, these synonyms all refer to the study of sound and its role in language.