pisolith[pīˈsə-lĭthˌ, -zə-, pĭsˈə-, pĭzˈə-]
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A small rounded accretionary mass, usually of calcium carbonate, larger and less regular than an oolite. Also called pisolite.
Origin: Greek pisos, pea + -lith.