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prostoon

American  
[proh-stoh-on] / proʊˈstoʊ ɒn /

noun

PLURAL

prostoa

  1. (in classical architecture) a portico.

Etymology

Origin of prostoon

< Greek próstoon; pro- 2, stoa

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.