earthball vs false truffle

earthball and false truffle both are nouns.

Word	Noun	Adjective	Verb	Adverb
earthball	Yes	No	No	No
false truffle	Yes	No	No	No

As nouns, earthball and false truffle are synonyms defined as:

earthball and false truffle: any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles

Other synonyms of earthball include hard-skinned puffball, puffball.

earthball (noun)	false truffle (noun)
any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles	any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles
	any of various fungi of the family Rhizopogonaceae having subterranean fruiting bodies similar to the truffle