Source : WordNet®

spring frog
     n 1: similar to bullfrog; found in or near marshes and ponds; of
          United States and Canada [syn: {green frog}, {Rana
          clamitans}]
     2: common North American green or brownish frog having
        white-edged dark oval spots [syn: {leopard frog}, {Rana
        pipiens}]