spongework

Spongy material.

Noun

  1. Spongy material.
    • One tubular "pore" is capable of being crawled into and through, so that one emerges again in the passage 16 feet farther along. But there is no other spongework in the entire cavern. - 1956, J. Harlen Bretz, Caves of...

Origin

From sponge + -work.