different between amphibian vs gnathostome

English

Etymology

From Ancient Greek ???????? (amphíbion), from ???? (amphí, “of both kinds”) + ???? (bíos, “life”)

Pronunciation

• enPR: ?m'f?b"?-?n, IPA^(key): /æm?f?b??n/

Adjective

amphibian (comparative more amphibian, superlative most amphibian)

1. Of or relating to the class Amphibia.
2. Capable of operating on both land and water amphibious.
3. (obsolete) Having two natures.

Derived terms

• amphibian helicopter
• amphibian species
• amphibian tank

Translations

Noun

amphibian (plural amphibians)

1. An animal of the Amphibia; any four-legged vertebrate that does not have amniotic eggs, living both on land and in water.
2. A vehicle which can operate on land and water. See Wikipedia article on "Amphibious aircraft"

Synonyms

• amphibium

Hypernyms

• Animalia
• Chordata
• Tetrapoda

Hyponyms

• Batrachia
• batrachian
• batrachofauna
• Labyrinthodontia (extinct)
• Lepospondyli (extinct)
• Lissamphibia

  Anura

  Caudata

  Gymnophiona

• Salientia

Related terms

• Amphibia
• amphibiology
• amphibiotic
• amphibious
• amphibius

Translations

See also

• Appendix: Animals
• amphibole
• amphibology
• amphiboly
• batrachology
• herpetology (amphibiology, reptiliology)

English

Etymology

gnatho- +? -stome

Noun

gnathostome (plural gnathostomes)

1. (zoology) Any vertebrate with jaws, including amphibians, reptiles, mammals, and most modern fish, in contrast with the Agnatha
   • 2009 January 15, Martin D. Brazeau, “The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins”, Nature Volume 457 No. 7227, doi:10.1038/nature07436:

     Current conceptions of gnathostome phylogeny depict a rather simplistic arrangement of nominally monophyletic and, apparently, morphologically disparate groups.