| Name: | preoptic area | 
|---|---|
| Synonyms: | area praeoptica, area preoptica, preoptic region | 
| Definition: | Area of the forebrain anterior to the posterior tuberculum and the hypothalamus and ventral to the ventral thalamus. See Figure 7, p. 34 in Atlas of Early Zebrafish Brain Development. | 
| Ontology: | Anatomy Ontology [ZFA:0000470] | 
| 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] |