Word.ws English Dictionary

lapillus

lapillus noun: a fragment of lava ejected from a volcano.

Noun

lapillus (plural lapilli)

  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. One of the otoliths in finfish.

Forms of lapillus

plurallapilli

Origin of lapillus

From Latin lapillus.

Questions about lapillus

What does lapillus mean?
Lapillus means a fragment of lava ejected from a volcano.
What part of speech is lapillus?
Lapillus is a noun.
What is the plural of lapillus?
The plural of lapillus is lapilli.

Words near lapillus in the dictionary

  1. lapillistone
  2. lapillistones
  3. lapillo
  4. lapillopsid
  5. lapillopsids
  6. lapillus
  7. lapin
  8. Lapine
  9. Lapines
  10. Lapinig
  11. lapinise

Source and license

Adapted from Wiktionary: lapillus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “lapillus.” Word.ws, https://word.ws/lapillus. Based on Wiktionary, CC BY-SA 4.0.