WordNet
lentiform nucleus
n. a basal ganglion shaped like a lens and including the outer reddish putamen and the inner pale yellow pallidum [syn: lenticular nucleus]
Wikipedia
Lentiform nucleus
The lentiform nucleus or lenticular nucleus comprises the putamen and the globus pallidus within the basal ganglia. It is a large, cone-shaped mass of gray matter just lateral to the internal capsule.