脳のう幹かんのうかんFreq.FrequencyTop 50,000Meanings1nounbrain stemanatomyAnatomical term for the brain stem, including the midbrain, pons, and medulla oblongata.脳のう幹かんは生せい命めい維い持じに重じゅう要ような役やく割わりを果はたしている。The brain stem plays a vital role in sustaining life.