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Pronunciation varies by accent · noun
Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish.
Use porphyropsin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Porphyropsin means Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use porphyropsin where its definition matches the intended context.
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