Photopigment
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This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:
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WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
Word Usage
"Invertebrates have rhabodomeric cells that use a special version of the photopigment called r-opsin, and activate cells by a particular pathway called a phospholipase-C cascade."
Hypernym
Words that are more generic or abstract
Hyponym
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