aPolythalamous(Zoöl) Many-chambered; -- applied to shells of Foraminifera and cephalopods. See Illust. of Nautilus.
Century Dictionary and Cyclopedia
polythalamousIn entomology, having several or many chambers: applied to the nests of insects, and to galls, when they contain many cells or compartments, each destined for or inhabited by a single larva.
polythalamousIn conchology, having many compartments; multilocular.
Chambers's Twentieth Century Dictionary
adjPolythalamouspol-i-thal′a-mus having many cells or chambers.
Webster's Revised Unabridged Dictionary
Poly-, + Gr. a chamber
Polythalamous Galls, often very large at the roots or on the trunk near the ground.
"Notes and Letters on the Natural History of Norfolk" by Thomas Browne