Definition of amphibian in English:

amphibian

nounamˈfɪbɪənæmˈfɪbiən

1A cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, salamanders, and caecilians. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
Class Amphibia: orders Urodela (newts and salamanders), Anura (frogs and toads), and Gymnophiona (caecilians)
Example sentencesExamples
- Among vertebrates, newts and other urodele amphibians show a remarkable capacity for regeneration.
- Young amphibians, like the larval frog or tadpole pictured here, spend their early years in the water, breathing through gills in the side of their head in much the same way as fish do.
- Many other types of animals - both amphibians and reptiles - shared the Triassic world.
- Secondarily aquatic adult amphibians provide another source of diversity.
- Spadefoot toads are desert-dwelling amphibians that breed opportunistically in short lived pools filled by periodic rainfall.
1. 1.1 A seaplane, tank, or other vehicle that can operate on land and on water.
  Example sentencesExamples
  It says no other road-legal amphibian has managed to exceed 6mph on water.
  Unfortunately for them, in December of 1941 the company was also given the go-ahead to develop an amphibian.

adjectiveamˈfɪbɪənæmˈfɪbiən

Relating to amphibians.
amphibian eggs
Example sentencesExamples
- In dry years, such as the year of this study, ponds were dry by mid-June, invertebrate and amphibian larvae were unable to develop enough to metamorphose and emerge from the water.
- One of the most urgent problems in conservation biology today is the continuing loss of amphibian populations on a global scale.
- Perhaps 10 to 30 percent of Earth's mammal, bird, and amphibian species are facing extinction.
- In both mammalian and amphibian eggs, integrins have been proposed as putative sperm receptors.
- In addition to ecological studies investigating the timing of amphibian metamorphosis, a considerable amount of work has addressed the endocrine control of metamorphosis.

Origin

Mid 17th century (in the sense 'having two modes of existence or of doubtful nature'): from modern Latin amphibium 'an amphibian', from Greek amphibion (noun use of amphibios 'living both in water and on land', from amphi 'both' + bios 'life').

Amphibians live both in water and on land, and it is the idea of ‘living in both’ that gives us the word, which comes from Greek amphi ‘both’ (also found in amphitheatre (Late Middle English) from amphi ‘on both sides’ and theatron ‘place for beholding’) and bios ‘life’, source of words such as biology (early 19th century) and antibiotic (mid 19th century). Before it was applied specifically to frogs, toads, and newts, amphibian simply meant ‘having two modes of existence, of doubtful nature’.

Rhymes

Libyan, Namibian

Definition of amphibian in US English:

amphibian

nounæmˈfɪbiənamˈfibēən

1A cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
Class Amphibia: orders Urodela (newts and salamanders), Anura (frogs and toads), and Gymnophiona (caecilians)
Example sentencesExamples
- Among vertebrates, newts and other urodele amphibians show a remarkable capacity for regeneration.
- Secondarily aquatic adult amphibians provide another source of diversity.
- Many other types of animals - both amphibians and reptiles - shared the Triassic world.
- Spadefoot toads are desert-dwelling amphibians that breed opportunistically in short lived pools filled by periodic rainfall.
- Young amphibians, like the larval frog or tadpole pictured here, spend their early years in the water, breathing through gills in the side of their head in much the same way as fish do.
1. 1.1 A seaplane, tank, or other vehicle that can operate on land and on water.
  Example sentencesExamples
  Unfortunately for them, in December of 1941 the company was also given the go-ahead to develop an amphibian.
  It says no other road-legal amphibian has managed to exceed 6mph on water.

adjectiveæmˈfɪbiənamˈfibēən

Relating to amphibians.
reptile and amphibian biology
Example sentencesExamples
- Perhaps 10 to 30 percent of Earth's mammal, bird, and amphibian species are facing extinction.
- One of the most urgent problems in conservation biology today is the continuing loss of amphibian populations on a global scale.
- In addition to ecological studies investigating the timing of amphibian metamorphosis, a considerable amount of work has addressed the endocrine control of metamorphosis.
- In both mammalian and amphibian eggs, integrins have been proposed as putative sperm receptors.
- In dry years, such as the year of this study, ponds were dry by mid-June, invertebrate and amphibian larvae were unable to develop enough to metamorphose and emerge from the water.

Origin

Mid 17th century (in the sense ‘having two modes of existence or of doubtful nature’): from modern Latin amphibium ‘an amphibian’, from Greek amphibion (noun use of amphibios ‘living both in water and on land’, from amphi ‘both’ + bios ‘life’).

单词	amphibian
释义	Definition of amphibian in English: amphibian nounamˈfɪbɪənæmˈfɪbiən 1A cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, salamanders, and caecilians. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage. Class Amphibia: orders Urodela (newts and salamanders), Anura (frogs and toads), and Gymnophiona (caecilians) Example sentencesExamples Among vertebrates, newts and other urodele amphibians show a remarkable capacity for regeneration. Young amphibians, like the larval frog or tadpole pictured here, spend their early years in the water, breathing through gills in the side of their head in much the same way as fish do. Many other types of animals - both amphibians and reptiles - shared the Triassic world. Secondarily aquatic adult amphibians provide another source of diversity. Spadefoot toads are desert-dwelling amphibians that breed opportunistically in short lived pools filled by periodic rainfall. 1.1 A seaplane, tank, or other vehicle that can operate on land and on water. Example sentencesExamples It says no other road-legal amphibian has managed to exceed 6mph on water. Unfortunately for them, in December of 1941 the company was also given the go-ahead to develop an amphibian. adjectiveamˈfɪbɪənæmˈfɪbiən Relating to amphibians. amphibian eggs Example sentencesExamples In dry years, such as the year of this study, ponds were dry by mid-June, invertebrate and amphibian larvae were unable to develop enough to metamorphose and emerge from the water. One of the most urgent problems in conservation biology today is the continuing loss of amphibian populations on a global scale. Perhaps 10 to 30 percent of Earth's mammal, bird, and amphibian species are facing extinction. In both mammalian and amphibian eggs, integrins have been proposed as putative sperm receptors. In addition to ecological studies investigating the timing of amphibian metamorphosis, a considerable amount of work has addressed the endocrine control of metamorphosis. Origin Mid 17th century (in the sense 'having two modes of existence or of doubtful nature'): from modern Latin amphibium 'an amphibian', from Greek amphibion (noun use of amphibios 'living both in water and on land', from amphi 'both' + bios 'life'). Amphibians live both in water and on land, and it is the idea of ‘living in both’ that gives us the word, which comes from Greek amphi ‘both’ (also found in amphitheatre (Late Middle English) from amphi ‘on both sides’ and theatron ‘place for beholding’) and bios ‘life’, source of words such as biology (early 19th century) and antibiotic (mid 19th century). Before it was applied specifically to frogs, toads, and newts, amphibian simply meant ‘having two modes of existence, of doubtful nature’. Rhymes Libyan, Namibian Definition of amphibian in US English: amphibian nounæmˈfɪbiənamˈfibēən 1A cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage. Class Amphibia: orders Urodela (newts and salamanders), Anura (frogs and toads), and Gymnophiona (caecilians) Example sentencesExamples Among vertebrates, newts and other urodele amphibians show a remarkable capacity for regeneration. Secondarily aquatic adult amphibians provide another source of diversity. Many other types of animals - both amphibians and reptiles - shared the Triassic world. Spadefoot toads are desert-dwelling amphibians that breed opportunistically in short lived pools filled by periodic rainfall. Young amphibians, like the larval frog or tadpole pictured here, spend their early years in the water, breathing through gills in the side of their head in much the same way as fish do. 1.1 A seaplane, tank, or other vehicle that can operate on land and on water. Example sentencesExamples Unfortunately for them, in December of 1941 the company was also given the go-ahead to develop an amphibian. It says no other road-legal amphibian has managed to exceed 6mph on water. adjectiveæmˈfɪbiənamˈfibēən Relating to amphibians. reptile and amphibian biology Example sentencesExamples Perhaps 10 to 30 percent of Earth's mammal, bird, and amphibian species are facing extinction. One of the most urgent problems in conservation biology today is the continuing loss of amphibian populations on a global scale. In addition to ecological studies investigating the timing of amphibian metamorphosis, a considerable amount of work has addressed the endocrine control of metamorphosis. In both mammalian and amphibian eggs, integrins have been proposed as putative sperm receptors. In dry years, such as the year of this study, ponds were dry by mid-June, invertebrate and amphibian larvae were unable to develop enough to metamorphose and emerge from the water. Origin Mid 17th century (in the sense ‘having two modes of existence or of doubtful nature’): from modern Latin amphibium ‘an amphibian’, from Greek amphibion (noun use of amphibios ‘living both in water and on land’, from amphi ‘both’ + bios ‘life’).
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