reducing glass

American  

noun

1. a lens or mirror that produces a virtual image of an object smaller than the object itself.

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reducing glass British  

noun

1. a lens or curved mirror that produces an image smaller than the object observed

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Example Sentences

Reducing glass sizes, then, does not keep people sober.

From Economist

While painting his designs, he looked through a reducing glass to see how his work would look when shrunk to about a sixth its actual size.

From New York Times

The great Flemish artists who produced them�Memling, Dirk Bouts, Roger van der Weyden and the brothers Van Eyk�held a reducing glass up to nature, painted serenely sweet and ordered little worlds.

From Time Magazine Archive

Figure it out yourself—look at it through a reducing glass.

From Project Gutenberg

There is a stretch where the trail leaves the valley road and zigzags up the face of the east bench to a height from which one may survey the whole sleeping valley of the Wimmenuche as through a reducing glass.

From Project Gutenberg