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Pronunciation varies by accent · noun
(immunology) A substance that produces an immune response in the presence of light.
Use photoantigen when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Photoantigen means (immunology) A substance that produces an immune response in the presence of light.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use photoantigen where its definition matches the intended context.
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