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Feb 16, 2012
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Dictionary


ap•er•tom•e•ter



Pronunciation: (ap"ur-tom'i-tur), [key]
—n. Optics.
an instrument for measuring the angular and numerical aperture of the objective lens of a microscope.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

aperitiveaperture
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