amphibious
am.phib.i.ous \am-'fib-e--*s\ aj [Gk amphibios, lit., living a double life, fr. amphi- + bios]mode of life - more at QUICK 1: able to live both on land and in water {~ plants} 2a: relating to or adapted for both land and water 2b: executed by coordinated action of land, sea, and air forces organized for invasion; also : trained or organized for such action 3: combining two characteristics - am.phib.i.ous.ly av