Bonnet capsule

Bon·net cap·sule

(bō-nā'),
the anterior part of the vagina bulbi.

Bon·net cap·sule

(bon'ĕt kap'sŭl)
The anterior part of the vagina bulbi.

Bonnet,

Amédée, French surgeon, 1809-1858.
Bonnet capsule - the anterior part of the vagina bulbi.