Illustrated Companion to the Latin Dictionary/Monopteros

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

MONOP'TEROS (μονόπτερος). Literally, with only one wing; whence adopted by architects to designate a circular shrine or temple, consisting of an open colonnade supporting a dome, under which an altar might be placed, but without any cell (cella, Vitruv. iv. 8. 1.), as shown by the annexed example (Monopteros/1.1). Vitruvius cites a temple of Bacchus at Teos as a specimen of this style (vii. Praef. 12.): and some architects recognize another instance in the existing ruins of an edifice at Pozzuoli, known as the temple of Serapis.

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  Monopteros/1.1