耳鼻科
じびか · jibika · JLPT N1 · noun
rhinolaryngology
👂 耳 = ear, 鼻 = nose, 科 = department: the ear-and-nose clinic (ENT doctor)
Read it as 'ear + nose + department': the medical department that treats ears and nose (and throat). じびか sounds like 'ji-bi-ka', so think 'ji' for ear-nose 'bi' clinic 'ka'.
科 — grain 禾 + measure 斗
科 combines 禾 (grain) and 斗 (a dipper/measure), originally depicting the act of measuring or grading grain. From this, it extended to mean classification, category, and branch of study. Today it commonly appears in words for science (科学) and academic disciplines.