amphibian

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun a flat-bottomed motor vehicle that can travel on land or water
noun an airplane designed to take off and land on water
noun cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form

Learned borrowing from Latin amphibius [from Ancient Greek ἀμφίβιος (amphíbios), from ἀμφίς (amphís, “of both kinds”) + βίος (bíos, “life”)] + -an.

For Nevians are true amphibians. — Triplanetary, E. E. (Edward Elmer) Smith
Amphibians at first crudely able to cope with both sea and land. — Astounding Stories, May, 1931, Various
First appearance | 45 | | |of amphibians and land | millions | | |plants. — The Book of the National Parks, Robert Sterling Yard

amphibious vehicle

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