Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of protagon is as below...

Protagonist :: Protagonist (n.) One who takes the leading part in a drama; hence, one who takes lead in some great scene, enterprise, conflict, or the like..

Protagon :: Protagon (n.) A nitrogenous phosphorized principle found in brain tissue. By decomposition it yields neurine, fatty acids, and other bodies..

Neurine :: Neurine (n.) A poisonous organic base (a ptomaine) formed in the decomposition of protagon with boiling baryta water, and in the putrefraction of proteid matter. It was for a long time considered identical with choline, a crystalline body originally obtained from bile. Chemically, however, choline is oxyethyl-trimethyl-ammonium hydroxide, while neurine is vinyl-trimethyl-ammonium hydroxide..

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