- [am'fɪbɪən]noun Zoology a cold-blooded vertebrate animal of a class (Amphibia) that comprises the frogs, toads, newts, salamanders, and caecilians, distinguished by an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage.OriginC17 (in the sense 'of dual or doubtful nature'): from mod. L. amphibium 'an amphibian', from Gk amphibion (noun use of amphibios 'living both in water and on land', from amphi 'both' + bios 'life').
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Amphibian — Am*phib i*an ( an), a. (Zo[ o]l.) Of or pertaining to the Amphibia; as, amphibian reptiles. [1913 Webster] … The Collaborative International Dictionary of English
Amphibian — Am*phib i*an, n. (Zo[ o]l.) One of the Amphibia. [1913 Webster] … The Collaborative International Dictionary of English
amphibian — (adj.) 1630s, having two modes of existence, of doubtful nature, from Gk. amphibia, neuter plural of amphibios living a double life, from amphi of both kinds (see AMPHI (Cf. amphi )) + bios life (see BIO (Cf. bio )). Formerly used by zoologists… … Etymology dictionary
amphibian — ► NOUN 1) a cold blooded animal with an aquatic larval stage and a terrestrial adult stage, e.g. a frog, toad, or newt. 2) an aircraft or vehicle that can operate on land and on water. ORIGIN Greek amphibion, from amphi both + bios life … English terms dictionary
amphibian — [am fib′ē ən] n. [< ModL Amphibia < Gr amphibia, neut. pl. of amphibios: see AMPHIBIOUS] 1. any of a class (Amphibia) of coldblooded, scaleless vertebrates, consisting of frogs, toads, newts, salamanders, and caecilians, that usually begin… … English World dictionary
Amphibian — taxobox name=Amphibians or amphibia fossil range= Late Devonian Recent image width = 300px image caption = Western Spadefoot Toad, Spea hammondii regnum = Animalia phylum = Chordata subphylum = Vertebrata superclassis = Tetrapoda classis =… … Wikipedia
amphibian — /am fib ee euhn/, n. 1. any cold blooded vertebrate of the class Amphibia, comprising frogs and toads, newts and salamanders, and caecilians, the larvae being typically aquatic, breathing by gills, and the adults being typically semiterrestrial,… … Universalium
amphibian — UK [æmˈfɪbɪən] / US noun [countable] Word forms amphibian : singular amphibian plural amphibians 1) biology an animal such as a frog or toad that lives mainly on land, but produces its eggs and develops into its adult form in water 2) a vehicle… … English dictionary
amphibian — noun Etymology: ultimately from Greek amphibion amphibious being, from neuter of amphibios Date: 1835 1. an amphibious organism; especially any of a class (Amphibia) of cold blooded vertebrates (as frogs, toads, or salamanders) intermediate in… … New Collegiate Dictionary
amphibian — [[t]æmfɪ̱biən[/t]] amphibians 1) N COUNT Amphibians are animals such as frogs and toads that can live both on land and in water. 2) N COUNT An amphibian is a vehicle which is able to move on both land and water, or an aeroplane which can land on… … English dictionary