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pisolith

American  
[pis-uh-lith, piz-, pahy-suh-] / ˈpɪs ə lɪθ, ˈpɪz-, ˈpaɪ sə- /

noun

  1. a pea-size calcareous concretion, larger than an oolith, aggregates of which constitute a pisolite.


Etymology

Origin of pisolith

First recorded in 1790–1800; pisolite, -lith