• synonyms


[luh-pil-uh s]
noun, plural la·pil·li [luh-pil-ahy] /ləˈpɪl aɪ/.
  1. a small stony particle ejected from a volcano.
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Origin of lapillus

1740–50; < Latin: little stone, pebble, diminutive of lapis stone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lapillus

Historical Examples of lapillus

  • Has Ottaiano then been destroyed only by the fall of lapillus and stones?

    Sterminator Vesevo (Vesuvius the great exterminator)

    Matilde Serao

  • The Purpura lapillus and Littorina litorea and rudis (periwinkles), so plentiful on this coast, are present.

    The Sea-beach at Ebb-tide

    Augusta Foote Arnold

  • Our automobile is now going slower, it cracks between two deep sinks of ashes and lapillus.

  • They have defied and conquered the lava, and lapillus, going always ahead there where duty called them.

  • It is thought that the last species is recognized in the Purpura lapillus (Fig. 277), which abounds in the Channel.

    The Ocean World:

    Louis Figuier

British Dictionary definitions for lapillus


noun plural -li (-laɪ)
  1. a small piece of lava thrown from a volcano
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Word Origin for lapillus

C18: Latin: little stone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lapillus in Science


Plural lapilli (lə-pĭlī′)
  1. A small fragment of lava, between 2 and 64 mm in size, blown out from a volcano.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.