The word "amphibious" is correct and usable in written English.
You can use it to describe animals or vehicles that are able to function both in water and on land. For example: "The army's new amphibious tank can double as a boat, enabling the troops to easily move from land to water."
He added: "In many ways this search and rescue mission is like an amphibious operation – I've deployed landing craft and aircraft in multiple waves, in poor visibility, operating autonomously over the horizon – the objective this time, of course, being to save life.
It has an attack submarine, more than 30 warships and amphibious craft and five fighter squadrons with 18 fighter aircraft.
A US military official confirmed that the US has three ships in the Gulf of Aden: the amphibious assault ship USS Kearsarge, the amphibious landing dock USS San Antonio, and the dock landing ship USS Carter Hall.
Portraits of D-day veterans as they look today, shown beside their youthful faces as they headed into one of the most famous episodes of the second world war, will go on display to mark the 71st anniversary of the largest amphibious invasion in history.
Five years on, American forces are back, in the shape of an amphibious landing ship 190 metres (600 feet) long and a smaller high-speed catamaran.
Top brass say it could mean a further loss of capability, perhaps in amphibious warfare, or cutting Britain's revered special forces.
It made use of an amphibious warship and two frigates, and had five naval vessels on patrol at all times as well as support from the coast guard.
In the coming weeks, as the only European country, they actually plan to help the aggressor by selling Putin's Russia brand-new huge Mistral-class amphibious assault ships.
In Fresno, California, the SWAT team has two helicopters complete with night-vision goggles; in Boone County, Indiana, an amphibious armoured personnel carrier.
One big drill, "Baltops", which took place in June, included a full amphibious landing in Estonia and a lot of planning on how to reinforce the Baltic states in a crisis.
Thus he took to the controls of an amphibious plane to put out personally the forest fires of summer 2010.
