Lapillus

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 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."

  2. 2
    One of the otoliths in finfish.

Synonyms

All synonyms
lapillo

Example

More examples

"They also found rounded granules that are probably accretionary lapilli — volcanic hailstones, formed as material gathers in the air."

Etymology

From Latin lapillus.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.