lampshell vs lamp shell

lampshell and lamp shell both are nouns.

Word	Noun	Adjective	Verb	Adverb
lampshell	Yes	No	No	No
lamp shell	Yes	No	No	No

As nouns, lampshell and lamp shell are synonyms defined as:

lampshell and lamp shell: marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide

Other synonyms of lampshell include brachiopod.

lampshell (noun)	lamp shell (noun)
marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide	marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide