Meaning of the word sea-cow in English

What does sea-cow mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sea-cow

US /ˈsiː ˌkaʊ/
UK /ˈsiː ˌkaʊ/

Noun

1.

a very large ocean mammal that no longer exists:

Example:
A rare fossil of a sea cow was found in Aliso.
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