crabeater seal vs crab-eating seal

crabeater seal and crab-eating seal both are nouns.

Word	Noun	Adjective	Verb	Adverb
crabeater seal	Yes	No	No	No
crab-eating seal	Yes	No	No	No

As nouns, crabeater seal and crab-eating seal are synonyms defined as:

crabeater seal and crab-eating seal: silvery grey Antarctic seal subsisting on crustaceans

crabeater seal (noun)	crab-eating seal (noun)
silvery grey Antarctic seal subsisting on crustaceans	silvery grey Antarctic seal subsisting on crustaceans