spongework

English

Etymology

From sponge +‎ -work.

Noun

spongework (uncountable)

1. Spongy material.
   • 1956, J. Harlen Bretz, Caves of Missouri, page 233:

     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.