Definition of cavernulous in English:

cavernulous

adjective

rare
  • (of rock or other material) full of minute cavities; porous.

    • ‘The remaining mass was rugged and cavernulous.’
    • ‘A hard greenish honeycombed cavernulous or vermiculated sandstone lies scattered at intervals’
    • ‘Copper will not cast either solid or tenacious, but is cavernulous and weak.’
    • ‘The two species have the same open, cavernulous, skeleton structure.’
    • ‘The surface of the marble itself is rendered rough and cavernulous.’
    permeable, penetrable, pervious
    View synonyms

Origin

Mid 18th century: from Latin cavernula, diminutive of caverna cavern + -ous.

Pronunciation:

cavernulous

/kəˈvəːnjʊləs/