- living or able to live both on land and in water; belonging to both land and water.
- Also amphibian. capable of operating on both land and water: amphibious vehicles.
- of or relating to military operations by both land and naval forces against the same object, especially to a military attack by troops landed by naval ships.
- trained or organized to fight, or fighting, on both land and sea: amphibious troops.
- combining two qualities, kinds, traits, etc.; of or having a mixed or twofold nature.
Origin of amphibious
Examples from the Web for amphibious
The Duplex Drive (called DD) was one: an amphibious conversion which could be fitted to a normal Sherman tank.Blood in the Sand: When James Jones Wrote a Grunt’s View of D-Day
November 15, 2014
Lawmakers have tried to halt the French sale of the Mistral, an amphibious warship, to the Russian Navy.Germany Helped Prep Russia for War, U.S. Sources Say
April 22, 2014
After the race the Duke and Duchess had a thrilling, bouncy ride across the harbour in an amphibious vehicle.Kate Rules The Waves And Thrashes William
April 11, 2014
The strongest conceivable U.S. land or amphibious forces would not provide a military option.America Doesn’t Need a Big Army Any More
March 10, 2014
Surfers today forecast waves using technology first developed to help with the timing of amphibious assaults.Surfing Is Less Mystical and More High Tech Says a New Book
August 1, 2013
The main theatre is where the amphibious power wishes to make it so.Gallipoli Diary, Volume 2
A walrus spouts much like a whale, but the walrus is not a fish, because he is amphibious.Moby Dick; or The Whale
The lances used by them were pointed with the teeth of these amphibious animals.Celebrated Travels and Travellers
Seals of amphibious nature, are either for the land or water.Orthography
Elmer W. Cavins
But I well knew that these amphibious monsters can far outswim a man.Ran Away to Sea
- able to live both on land and in the water, as frogs, toads, etc
- designed for operation on or from both water and land
- relating to military forces and equipment organized for operations launched from the sea against an enemy shore
- having a dual or mixed nature
Word Origin and History for amphibious
1640s, from Greek amphibios "having a double life" (see amphibian). Of motor vehicles, from 1915.