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amphibious

[am-fib-ee-uh s] /æmˈfɪb i əs/
adjective
1.
living or able to live both on land and in water; belonging to both land and water.
2.
Also, amphibian. capable of operating on both land and water:
amphibious vehicles.
3.
of or pertaining to military operations by both land and naval forces against the same object, especially to a military attack by troops landed by naval ships.
4.
trained or organized to fight, or fighting, on both land and sea:
amphibious troops.
5.
combining two qualities, kinds, traits, etc.; of or having a mixed or twofold nature.
Origin
1635-1645
1635-45; < Latin amphibius < Greek amphíbios living a double life. See amphi-, bio-, -ous
Related forms
amphibiously, adverb
amphibiousness, noun
nonamphibious, adjective
nonamphibiously, adverb
nonamphibiousness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for amphibiousness

amphibious

/æmˈfɪbɪəs/
adjective
1.
able to live both on land and in the water, as frogs, toads, etc
2.
designed for operation on or from both water and land
3.
relating to military forces and equipment organized for operations launched from the sea against an enemy shore
4.
having a dual or mixed nature
Derived Forms
amphibiously, adverb
amphibiousness, noun
Word Origin
C17: from Greek amphibios, literally: having a double life, from amphi- + bios life
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for amphibiousness

amphibious

adj.

1640s, from Greek amphibios "having a double life" (see amphibian). Of motor vehicles, from 1915.

Online Etymology Dictionary, © 2010 Douglas Harper
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