The correct spelling of the word "more intestine" is "small intestine." The sound represented by the letter "o" in "more" is actually pronounced as the sound represented by the letter "a" in "cat." The IPA phonetic transcription for "small intestine" is /smɔːl/ /ɪnˈtɛstɪn/. It is important to use correct spelling and pronunciation in the medical field to avoid confusion and ensure accurate diagnoses and treatments.