amphibious

am·phib·i·ous

adjective \am-ˈfi-bē-əs\

: able to live both on land and in water

: able to be used both on land and water

: done by soldiers who are brought to land in special boats : carried out by land and sea forces acting together

Full Definition of AMPHIBIOUS

1

:  combining two characteristics

2

a :  relating to or adapted for both land and water <amphibious vehicles>

b :  executed by coordinated action of land, sea, and air forces organized for invasion <an amphibious landing>; also :  trained or organized for such action <amphibious forces>

3

:  able to live both on land and in water <amphibious plants>

— am·phib·i·ous·ly adverb

— am·phib·i·ous·ness noun

Origin of AMPHIBIOUS

Greek amphibios, literally, living a double life, from amphi- + bios mode of life — more at quick

First Known Use: 1643

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