John 1509—1564 originallyJean Cauvin French theologian and reformer
calvin
biographical name(Cal-vin)
Melvin 1911—1997 American chemist
calvin
noun(Cal-vin)
the cycle of enzyme-catalyzed dark reactions of photosynthesis that occurs in the chloroplasts of plants and in many bacteria and that involves the fixation of carbon dioxide and the formation of a 6-carbon sugar