(ˈ)am|fibēəs, -aam- adjective
Etymology: Greek amphibios leading a double life, amphibious, from amphi- + bios life — more at quick
1. : able to live both on land and in water
frogs, crocodiles and beavers are amphibious
amphibious plants
2.
a. : belonging to, adapted for, or consisting of both land and water
the amphibious character of an island people
amphibious activities in a lakeside village
an amphibious swampy country
b.
(1) : executed by coordinated action of land, sea, and air forces organized for invasion from the sea, usually employing warships, assault boats, landing barges, assault troops, aircraft carriers, and covering aircraft
(2) : trained or organized for participation in such action
skill in amphibious warfare
an amphibious corps
3. : having or combining two lives, positions, or qualities
an amphibious existence, both mental and physical
• am·phib·i·ous·ly adverb
• am·phib·i·ous·ness noun -es