noun \lə-ˈpi-ləs\
plural la·pil·li\-ˌlī, -(ˌ)lē\

Definition of LAPILLUS

:  a small stony or glassy fragment of lava ejected in a volcanic eruption

Origin of LAPILLUS

Latin, diminutive of lapis
First Known Use: 1747

Rhymes with LAPILLUS


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