| 释义 |
amphibian
am·phib·i·an A0264100 (ăm-fĭb′ē-ən)n.1. Any of various cold-blooded, usually smooth-skinned vertebrates of the class Amphibia, characteristically hatching as an aquatic larva with gills and then transforming into an adult having air-breathing lungs. Frogs, toads, salamanders, and caecilians are amphibians. 2. An animal capable of living both on land and in water.3. An aircraft that can take off and land on either land or water.4. A tracked or wheeled vehicle that can operate both on land and in water.
[From New Latin Amphibia, class name, from Greek, neuter pl. of amphibios, amphibious : amphi-, amphi- + bios, life; see gwei- in Indo-European roots.]amphibian (æmˈfɪbɪən) n1. (Animals) any cold-blooded vertebrate of the class Amphibia, typically living on land but breeding in water. Their aquatic larvae (tadpoles) undergo metamorphosis into the adult form. The class includes the newts and salamanders, frogs and toads, and caecilians2. (Aeronautics) a type of aircraft able to land and take off from both water and land3. (Automotive Engineering) any vehicle able to travel on both water and landadj4. (Zoology) another word for amphibious5. (Zoology) of, relating to, or belonging to the class Amphibiaam•phib•i•an (æmˈfɪb i ən)
n. 1. any cold-blooded vertebrate of the class Amphibia, including frogs, salamanders, and caecilians, usu. having an aquatic, gill-breathing tadpole stage and later developing lungs. 2. an airplane designed for taking off from and landing on both land and water. 3. a flat-bottomed military vehicle, equipped with both tracks and a rudder for traveling on land or in water. adj. 4. belonging or pertaining to the class Amphibia. 5. amphibious. [1630–40; < Latin amphibi(a), neuter pl. of amphibius amphibious + -an1] am·phib·i·an (ăm-fĭb′ē-ən) A cold-blooded vertebrate animal having moist skin without scales. Most amphibians lay eggs in water, and their young breathe with gills but develop lungs and breathe air as adults. Amphibians include frogs, toads, and salamanders.Word History Amphibians are not quite fish and not quite reptiles. Like fish, they spend part of their lives living in water and breathing with gills; like reptiles, they usually spend another part of their lives breathing air with lungs and able to live on land. This double life is also at the root of their name, amphibian, which, like many scientific words, comes from Greek. It is made up of the Greek prefix amphi-, meaning "both" or "double," and the Greek word bios, meaning "life." Both these elements are widely used in other scientific words in English: bios, for example, is also seen in words like biology, antibiotic, and symbiotic.reptile, amphibian - A reptile has dry, scaly skin, while an amphibian has moist skin.See also related terms for reptile.amphibianA small craft, propelled by propellers and wheels or by air cushions for the purpose of moving on both land and water.Thesaurus| Noun | 1. |  amphibian - a flat-bottomed motor vehicle that can travel on land or wateramphibious vehicleautomotive vehicle, motor vehicle - a self-propelled wheeled vehicle that does not run on railsmarsh buggy, swamp buggy - an amphibious vehicle typically having four-wheel drive and a raised body | | 2. | amphibian - an airplane designed to take off and land on wateramphibious aircraftaeroplane, airplane, plane - an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"pontoon - a float supporting a seaplane | | 3. |  amphibian - cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult formcraniate, vertebrate - animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or craniumamphibia, class Amphibia - the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caeciliansHynerpeton bassetti - fossil amphibian of the Devonian having well-developed forelimbs; found in PennsylvaniaIchyostega - early tetrapod amphibian found in Greenlandurodele, caudate - amphibians that resemble lizardssalamander - any of various typically terrestrial amphibians that resemble lizards and that return to water only to breedanuran, batrachian, frog, salientian, toad, toad frog - any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial speciescaecilian, blindworm - any of the small slender limbless burrowing wormlike amphibians of the order Gymnophiona; inhabit moist soil in tropical regionslabyrinthodont - an amphibian of the superorder Labyrinthodontialateral line, lateral line organ - sense organs of fish and amphibians; believed to detect pressure changes in the water | | Adj. | 1. |  amphibian - relating to or characteristic of animals of the class Amphibiaamphibious |
amphibianAmphibians axolotl, bullfrog, caecilian, congo eel or snake, eft, frog or (Caribbean) crapaud, Goliath frog, hairy frog, hellbender, hyla, midwife toad, mud puppy, natterjack, newt or (dialect or archaic) eft, olm, pipa or Surinam toad, Queensland cane toad, salamander, siren, toad or (Caribbean) crapaud, tree frogTranslationsamphibian (ӕmˈfibiən) noun1. a creature that spends part of its life on land and part in water. Frogs are amphibians. 兩棲動物 两栖动物2. a vehicle designed to move on land or in the water. 水陸兩用車輛 水陆两用车辆3. an aircraft designed to fly from land or water. 水陸兩用飛機 水陆两用飞机amˈphibious adjective 兩棲的 两栖的amphibian
amphibian (ăm-fĭb′ē-ən)n. Any of various cold-blooded, usually smooth-skinned vertebrates of the class Amphibia, characteristically hatching as an aquatic larva with gills and then transforming into an adult having air-breathing lungs. Frogs, toads, salamanders, and caecilians are amphibians. amphibian (am-fĭb′ē-ăn) An animal of the class Amphibia.amphibian, adjectiveamphibian a member of the vertebrate class Amphibia, containing frogs, toads, newts, salamanders and the burrowing caecilians. Descended from fish-like animals, they colonized the land in the late DEVONIAN PERIOD. They are thought to be the immediate ancestors of the reptiles, though present-day amphibians are little like their Devonian ancestors. Most amphibians, although normally terrestrial animals, return to water during the breeding season. Fertilization is external (the eggs lacking a shell and embryonic membranes), and the eggs are usually laid and develop in water.AcronymsSeeAamphibian
Synonyms for amphibiannoun a flat-bottomed motor vehicle that can travel on land or waterSynonymsRelated Words- automotive vehicle
- motor vehicle
- marsh buggy
- swamp buggy
noun an airplane designed to take off and land on waterSynonymsRelated Words- aeroplane
- airplane
- plane
- pontoon
noun cold-blooded vertebrate typically living on land but breeding in waterRelated Words- craniate
- vertebrate
- amphibia
- class Amphibia
- Hynerpeton bassetti
- Ichyostega
- urodele
- caudate
- salamander
- anuran
- batrachian
- frog
- salientian
- toad
- toad frog
- caecilian
- blindworm
- labyrinthodont
- lateral line
- lateral line organ
adj relating to or characteristic of animals of the class AmphibiaSynonyms |