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Pronunciation varies by accent · noun
Any atom or molecule which, when added to a crystal, causes it to luminesce or fluoresce.
Use luminogen when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Luminogen means Any atom or molecule which, when added to a crystal, causes it to luminesce or fluoresce.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use luminogen where its definition matches the intended context.
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