opera glass[ŏpˈər-ə, ŏpˈrə]
A pair of vintage opera glasses.Licensed from iStockPhoto
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A pair of small, low-powered binoculars for use especially at a theatrical performance. Often used in the plural.