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Pronunciation varies by accent · noun
Any species of several huge extinct cetaceans belonging to the genus †Basilosaurus, of the family †Basilosauridae, from the late Eocene, with two species B. isis (found in Egypt and Tunisia) and B. cetoides (found in the southern and eastern US)..
Use basilosaurus when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Basilosaurus means Any species of several huge extinct cetaceans belonging to the genus †Basilosaurus, of the family †Basilosauridae, from the late Eocene, with two species B. isis (found in Egypt and Tunisia) and B. cetoides (found in the southern and eastern US)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use basilosaurus where its definition matches the intended context.
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