mamillary body

English Thesaurus

1. one of two small round structures on the undersurface of the brain that form the terminals of the anterior arches of the fornix (noun.body)

hypernym	:	neural structure,
definition	:	a structure that is part of the nervous system (noun.body)

part meronym	:	betweenbrain, diencephalon, interbrain, thalmencephalon,
definition	:	the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon (noun.body)