a. [ Gr. 'amfi` + &unr_;, &unr_;, the earth. ] Extending over all the zones, from the tropics to the polar zones inclusive. [ 1913 Webster ]
a. (Zool.) Of or pertaining to the Amphibia; as, amphibian reptiles. [ 1913 Webster ]
n. (Zool.) One of the Amphibia. [ 1913 Webster ]