Stomatocace is a medical term referring to an inflammation of the mouth. Its spelling can be confusing and difficult to pronounce, but it consists of four syllables: sto-ma-to-cace. The first syllable, "sto," is pronounced with a long "o" sound, while the second syllable, "ma," has a short "a" sound. The third syllable, "to," is pronounced with a long "o" sound, and the final syllable, "cace," has a soft "s" sound followed by a long "a" sound. The IPA phonetic transcription for this word is /ˌstəʊmətəˈkeɪs/.
Ulcerative stomatitis, putrid sore mouth.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.