1630s, "having two modes of existence, of doubtful nature," from Greek amphibia, neuter plural of amphibios "living a double life," from amphi- "of both kinds" (see amphi-) + bios "life" (see bio-).
Formerly used by zoologists to describe all sorts of combined natures (including otters and seals), the biological sense "class of animals between fishes and reptiles that live both on land and in water" and the noun derivative both are first recorded 1835. Amphibia was used in this sense from c. 1600 and has been a zoological classification since c. 1819.
实用例句
1. Both the toad and frog are amphibian.
蟾蜍和青蛙都是两栖动物.
来自《简明英汉词典》
2. Conclusion Onychodactylus fischeri is a relatively primitive type in the amphibian.
结论爪鲵在两栖纲动物中属于较原始的种类.
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3. It is being actively pursued by amphibian specialists, for example.
举个例,许多两栖类生物研究专家正积极的从事这项工作.
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4. The North American Amphibian Monitoring Program is the country's largest frog - counting system.
北美两栖类监测计划是美国最大的青蛙计数系统.
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5. The sealed bottom is for setting making for amphibian.
