The word "tendinis" is a medical term referring to inflammation of a tendon. Its spelling is derived from its Greek root "tendōn" combined with the Latin suffix "-itis". In IPA phonetic transcription, it is pronounced as /tɛn'dinɪs/, with emphasis on the second syllable. The pronunciation features the "e" sound in tend, a short "i" in din, and the soft "s" sound at the end. Accurate spelling of medical terms like tendinis is critical to ensure clear communication among healthcare professionals.