咽いん頭とう弓きゅうMeanings1nounpharyngeal archAnatomical term for the structures in the developing embryo that form the pharynx and related structures.咽いん頭とう弓きゅうは発はっ生せい学がくで重じゅう要ような構こう造ぞうです。The pharyngeal arch is an important structure in embryology.