plural walrus or walruses
Definition of walrus
: a large gregarious marine mammal (Odobenus rosmarus of the family Odobenidae) of arctic waters related to the seals that has limbs modified into webbed flippers, long ivory tusks, a tough wrinkled hide, stiff whiskers, and a thick layer of blubber
Note: The male walrus may reach a weight of over 3700 pounds (1678 kilograms). Walrus typically inhabit moving pack ice and usually feed on organisms (such as clams and mussels) living on or near the ocean's bottom. Walrus of the northern Atlantic are considered a separate subspecies (Odobenus rosmarus rosmarus) from the somewhat larger northern Pacific walrus (Odobenus rosmarus divergens).
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Merriam-Webster unabridged
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Time Traveler for walrus
The first known use of walrus was in 1728
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