Newly begun or formed; not advanced, Geology Being of an early stage in a geologic cycle. Used of bodies of water and land formations, Being the junior of two people having the same name, noun_ The offspring of animals, either a single animal or offspring collectively, People who are young; young beings, United States baseball player and famous pitcher (1867-1955), verb_ To become or seem to become younger, To cause to appear younger, geology To exhibit younging