(mathematics) closed at one extremum

(zoology) A structure in the gills of bivalves, consisting of a pair of lamellae containing blood vessels

plural of demibranch

A person who has a half a billion dollars, pounds, or other currency.

plural of demibillionaire

Relating to demibranchs

(biology) A halved cytoplast (typically of an oocyte)

(neologism) A person who identifies as partially, but not completely, male.

plural of demiboy

Synonym of semicylindrical