lapillus

[ luh-pil-uh s ]

/ ləˈpɪl əs /

a small stony particle ejected from a volcano.

Origin of lapillus

1740–50; < Latin: little stone, pebble, diminutive of lapis stone

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

Sterminator Vesevo (Vesuvius the great exterminator) |Matilde Serao
Has Ottaiano then been destroyed only by the fall of lapillus and stones?

Sterminator Vesevo (Vesuvius the great exterminator) |Matilde Serao
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
Our automobile is now going slower, it cracks between two deep sinks of ashes and lapillus.

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

lapillus

/ (ləˈpɪləs) /

a small piece of lava thrown from a volcano

C18: Latin: little stone

lapillus

[ lə-pĭl′əs ]

A small fragment of lava, between 2 and 64 mm in size, blown out from a volcano.