|Ochoa (ō-chō'ə) Pronunciation Key
Spanish-born American geneticist who in 1955 discovered an enzyme that was used in the first synthesis of artificial RNA. For this work he shared with Arthur Kornberg the 1959 Nobel Prize for physiology or medicine.
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a fool or simpleton; ninny.|