from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A cold-blooded, smooth-skinned vertebrate of the class Amphibia, such as a frog or salamander, that characteristically hatches as an aquatic larva with gills. The larva then transforms into an adult having air-breathing lungs.
- n. An animal capable of living both on land and in water.
- n. An aircraft that can take off and land on either land or water.
- n. A tracked or wheeled vehicle that can operate both on land and in water.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having two natures.
- adj. Pertaining to the Amphibia.
- n. An animal of the Amphibia; any four-legged vertebrate that does not have amniotic eggs, living both on land and in water.
- n. A vehicle which can operate on land and water.
- adj. Of or relating to the amphibians Amphibia.
- adj. Capable of operating on both land and water amphibious.
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to the Amphibia.
- n. One of the Amphibia.
from The Century Dictionary and Cyclopedia
- Of or pertaining to amphibia in any sense; specifically, pertaining to the class Amphibia. See amphibious, 2.
- n. An animal of the class Amphibia.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a flat-bottomed motor vehicle that can travel on land or water
- n. cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form
- adj. relating to or characteristic of animals of the class Amphibia
- n. an airplane designed to take off and land on water
From New Latin Amphibia, class name, from Greek, neuter pl. of amphibios, amphibious : amphi-, amphi- + bios, life.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ἀμφίβιον (amphibion), from ἀμφί (amphi, "of both kinds") + βίος (bios, "life") (Wiktionary)