Term: hypothalamus brain nucleus
Name: hypothalamus
Synonyms:
Definition: Multi-tissue structure which is the largest portion of diencephalon and is ventrally located. The hypothalamus arises near the end of the segmentation period and the embryonic hypothalamic region gives rise to the neurohypophysis and other diencephalic nuclei.
Ontology: Anatomy Ontology [ZFA:0000032]

Name: brain nucleus
Synonyms: brain nuclei
Definition: Portion of tissue that are compact accumulations of neurons having roughly similar connections and functions.
Ontology: Anatomy Ontology [ZFA:0005575]