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Etymologies
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Examples
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The crystal trapdoor swung towards them like an opening watchglass, and out of its swirled a blast of frigid air such as Mirissa had never imagined far less experienced.
The Songs of Distant Earth Clarke, Arthur C. 1986
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When the alkaloid is heated in a watchglass with a drop of strong sulphuric acid until the acid begins to fume, and is then allowed to get quite cold, a drop of nitric acid produces a brilliant red colour.
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_ -- Having previously carefully fitted a watchglass to a wide-mouthed bottle, nearly fill the bottle with the contents of the stomach, blood, secretions, etc. Place a few drops of a solution of nitrate of silver on the concave surface of the watchglass, and cover the mouth of the bottle with it.
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A clear cornea-essential to good vision - "is the clear window on the eye," like a watchglass on a watch, added Pflugfelder, who was not involved with the Italian study but is familiar with its findings.
Discover Blogs 2010
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Ah but it isn’t other than in its gross form, eg the shaping of the watchglass.
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* High-quality scratch-resistant Mineral Crystal watchglass.
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