Solitary follicle

What is Solitary follicle?

Solitary follicle definition and meaning on Dictionary terms:
(used with a plural verb) an archipelago in the W Pacific Ocean, E of New Guinea; important World War II battles; politically divided between Papua New Guinea and the Solomon Islands.
(used with a singular verb) an independent country comprising the larger, SE part of this archipelago: a former British protectorate; gained independence in 1978. 11,458 sq. mi. (29,676 sq. km). Capital: Honiara (on Guadalcanal).