lapillus

noun — 2 senses

lapillus

noun

Etymology From Latin lapillus.

1

A fragment of lava ejected from a volcano.

They also found rounded granules that are probably accretionary lapilli — volcanic hailstones, formed as material gathers in the air.2007 May 8, Henry Fountain, “It’s Still Dark Out, So Why Are the Birds Singing Away?”, in New York Times:

2

Biology, Natural sciences, Zoology One of the otoliths in finfish.

Hypernyms: tephra

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.