Meaning of tholos

tho•los

Pronunciation: (thō'los, -lōs), [key]
— pl. -loi
  1. (in classical architecture)
    1. a circular building.
    2. a small, round structure, as a lantern.
    3. a circular subterranean tomb, lined with masonry.
  2. a subterranean domed tomb chamber of the Mycenaean age.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.