cachalot vs Physeter catodon

cachalot and Physeter catodon both are nouns.

Word	Noun	Adjective	Verb	Adverb
cachalot	Yes	No	No	No
Physeter catodon	Yes	No	No	No

As nouns, cachalot and Physeter catodon are synonyms defined as:

cachalot and Physeter catodon: large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris

Other synonyms of cachalot include black whale, sperm whale.

cachalot (noun)	Physeter catodon (noun)
large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris	large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris