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eaglestone

American  
[ee-guhl-stohn] / ˈi gəlˌstoʊn /

noun

  1. a concretionary lump of ironstone about the size of a walnut, formerly believed to be carried by eagles to their nests as a magical aid in laying eggs.

eaglestone British  
/ ˈiːɡəlˌstəʊn /

noun

  1. a hollow oval nodule of clay ironstone, formerly thought to have magical properties

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of eaglestone

First recorded in 1595–1605; eagle + stone

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.