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Pronunciation varies by accent · noun
(optics, microscopy) An instrument designed to measure the numerical aperture of a lens or objective of a microscope..
Use apertometer when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Apertometer means (optics, microscopy) An instrument designed to measure the numerical aperture of a lens or objective of a microscope..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use apertometer where its definition matches the intended context.
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