adjective
rare(of rock or other material) full of minute cavities; porous.
‘The remaining mass was rugged and cavernulous.’- ‘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.’
- ‘A hard greenish honeycombed cavernulous or vermiculated sandstone lies scattered at intervals’
permeable, penetrable, pervious
Origin
Mid 18th century from Latin cavernula, diminutive of caverna ‘cavern’ + -ous.
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