菱りょう脳のうりょうのうMeanings1noun, noun which may take the genitive case particle 'no'rhombencephalon; hindbrainAnatomical term for the embryonic hindbrain, which develops into the metencephalon and myelencephalon. Used in medical and biological contexts.See also: 後脳菱りょう脳のうは後こう脳のうと髄ずい脳のうに分ぶん化かする。