/thoh"los, -lohs/ , n. , pl. tholoi /-loy/ .
1. (in classical architecture)
a. a circular building.
b. a small, round structure, as a lantern.
c. a circular subterranean tomb, lined with masonry.
2. a subterranean domed tomb chamber of the Mycenaean age.
[ 1895-1900; thólos lit., rotunda ]