sea cow
noun
1.
any sirenian, as the manatee or dugong.
2.
Obsolete.
the hippopotamus.
Origin
1605-15
Examples from the web for
sea cow
The closest relative to the elephants are the relatives of the
sea cow
.
Certain human activities are also the main problem facing the endangered manatee, or
sea cow
.
British Dictionary definitions for
sea cow
sea cow
noun
1.
any sirenian mammal, such as a dugong or manatee
2.
an archaic name for
walrus
Slang definitions & phrases for
sea cow
sea cow
noun phrase
Milk, esp canned milk
(WWII Navy)