porin Syllabification: (po·rin)Pronunciation: /ˈpôrən/Definition of porin noun Biochemistry any of a class of proteins whose molecules can form channels (large enough to allow the passage of small ions and molecules) through cellular membranes. Origin: 1970s: from Greek poros 'pore' + -in1porin in other Oxford dictionaries Definition of porin in the British & World English dictionary
