This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A small domical mountain or hill.

n. A round excavated tomb lined with masonry. See beehive tomb.

n. In classical arch., any circular building, as that designed by Polycletus at Epidaurus; also, a dome or cupola; a domed structure; specifically, at Athens, the round chamber, or rotunda, a public building connected with the prytaneum, in which the prytanes dined.

"There were no towers or battlements: only the faceted tholus, climbing until it lost itself against the sky and its momentary brilliancies were confounded with the faint star's."