Is “Lapilli” a Scrabble word?
Yes
LAPILLI
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Lapilli
noun
1.A fragment of lava ejected from a volcano.
2.One of the otoliths in finfish.