[ ter-on ]
/ ˈtɛr ɒn /

noun Architecture.

(in a classical temple) a colonnade parallel to, but apart from, the cella.
the space between this and the cella.

Origin of pteron

1840–50; < Latin < Greek pterón literally, wing Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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