noun
- A class of visual pigments found in the retinas of certain fish and other aquatic vertebrates, similar to rhodopsin but with a different light-absorbing wavelength.
Usage: technical; biology; plural form of porphyropsin
Examples
- Porphyropsins are photosensitive proteins that enable vision in freshwater fish.
- The presence of porphyropsins in deep-sea creatures helps them detect bioluminescence.
- Unlike rhodopsin, porphyropsins absorb light at different wavelengths suited to aquatic environments.
- Scientists study porphyropsins to understand how different species adapt to their visual habitats.