What does "hard-skinned puffball" mean?

any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles

What is a synonym for "hard-skinned puffball"?

Common synonyms include: earthball, false truffle, puffball.

Rare ·Advanced level

Noun

1
any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles wordnet