wood louse vs slater

wood louse and slater both are nouns.

Word	Noun	Adjective	Verb	Adverb
wood louse	Yes	No	No	No
slater	Yes	No	No	No

As nouns, wood louse and slater are synonyms defined as:

wood louse and slater: any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats

Other synonyms of wood louse include woodlouse.

wood louse (noun)	slater (noun)
any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats	any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats