whale sucker vs whalesucker

whale sucker and whalesucker both are nouns.

Word	Noun	Adjective	Verb	Adverb
whale sucker	Yes	No	No	No
whalesucker	Yes	No	No	No

As nouns, whale sucker and whalesucker are synonyms defined as:

whale sucker and whalesucker: large blue Pacific remora that attaches to whales and dolphins

Other synonyms of whale sucker include Remilegia australis.

whale sucker (noun)	whalesucker (noun)
large blue Pacific remora that attaches to whales and dolphins	large blue Pacific remora that attaches to whales and dolphins