Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Biology Living or able to live both on land and in water.
  • adj. Able to operate both on land and in water: amphibious tanks.
  • adj. Relating to or organized for a military landing by means of combined naval and land forces.
  • adj. Of a mixed or twofold nature.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Capable of functioning on land or in water.
  • adj. Occurring on both land and water.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having the ability to live both on land and in water, as frogs, crocodiles, beavers, and some plants.
  • adj. Pertaining to, adapted for, or connected with, both land and water.
  • adj. Of a mixed nature; partaking of two natures.

from The Century Dictionary and Cyclopedia

  • . Living both on land and in water; habitually alternating between land and water.
  • Of or pertaining to the Amphibia; amphibian.
  • Of a mixed nature; partaking of two natures: as, an amphibious breed.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. operating or living on land and in water
  • adj. relating to or characteristic of animals of the class Amphibia

Etymologies

From Latin amphibius, from Greek amphibios; see amphibian.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • It comprised a chunk of cinematic fleet on the move stuff, then dived into the protags first, call it "amphibious", action.

    Another one of those potentially life changing crit sessions...

  • And here it is, six years after the voyage, it's incredible, '' said Luis Grass, 41, the man who came up with the idea of the seafaring truck and made history by escaping from Cuba twice in amphibious vehicles.

    Sunday Reading

  • U.S.S. BATAAN SITS OFF SHORE, VIRTUALLY UNUSED: The USS Bataan, a 844-foot ship designed to dispatch Marines in amphibious assaults, has helicopters, doctors, hospital beds, food and water.

    Hurricane Katrina

  • The USS Bataan, a 844-foot ship designed to dispatch Marines in amphibious assaults, has helicopters, doctors, hospital beds, food and water.

    Damn them « BuzzMachine

  • That is why NATO's current commander, Marine General James L. Jones, emphasizes that NATO's future lies in amphibious, expeditionary warfare.

    How We Would Fight China

  • "If you find yourself unable to understand or accept the overwhelming evidence against your assertion of the military necessity for internment, I strongly recommend that you speak to an admiral or Marine general well-versed in amphibious assaults and WWII-era military history."

    IsThatLegal?

  • The exact number of aircraft carriers in service worldwide is difficult to establish because of the proliferation of vessels that are classified as amphibious warfare ships, helicopter carriers or even cruisers or destroyers - but that fit the classic definition of a carrier as a mobile air base with a flat deck from which aircraft take off and land.

    The Seattle Times

  • We use the term amphibious to describe these floating foundations that rest on piles.

    INTERVIEW: Koen Olthuis of WaterStudio.nl | Inhabitat

  • May be termed amphibious, for about the time oats run, he has been met with at considerable distances from water, and has even been detected in pea fields, gorged with the usual accessories to duck, to which in some respects he is so far analogous -- that though a foul feeder he is excellent as an edible.

    The Teesdale Angler

  • The Frog is amphibious, that is, able to live on land or in water -- and yet it is compelled to come to the surface of the water for air to supply its lungs.

    A Series of Lessons in Gnani Yoga

Comments

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  • Railroad telegraphers' notation meaning "Will you allow? --US Railway Association, Standard Cipher Code, 1906.

    January 19, 2013