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Pronunciation varies by accent · noun
The darkening of certain materials under the action of laser light.
Use photodarkening when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Photodarkening means The darkening of certain materials under the action of laser light.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use photodarkening where its definition matches the intended context.
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