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Pronunciation varies by accent · noun
An optometric instrument that measures the minimum threshold of brightness that can be detected or how well the human eye can adapt to a recently darkened environment..
Use adaptometer when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Adaptometer means An optometric instrument that measures the minimum threshold of brightness that can be detected or how well the human eye can adapt to a recently darkened environment..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use adaptometer where its definition matches the intended context.
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