Clodomiro Picado Twight (April 17, 1887 - May 16, 1944), also known as "Clorito Picado", was a Costa Rican scientist, born in Nicaragua, who was recognized for his research and discoveries.
He was a pioneer in the researching of snakes and serpent venoms; his internationally recognized achievement is the development of various antivenins.
His work on molds was a precursor to the formal discovery of penicillin.
His work resulted in compounds which he used to treat patients at least one year before the re-discovery of penicillin by Alexander Fleming.
He wrote over 115 works, mainly books and monographs.