geode

noun

ge·​ode ˈjē-ˌōd 

1

: a nodule of stone having a cavity lined with crystals or mineral matter

2

: the cavity in a geode

Example Sentences

Recent Examples on the Web

So how, exactly, did this great geode come to be? —Alex Orlando, Discover Magazine, 23 Oct. 2019

Selected by Anne Boyer By Anthony Robinson 88 DAYS ago my father died & The world is still broken Open like a geode, too Dazzling to apprehend, Too terrible to come home To. —Anthony Robinson Anne Boyer, New York Times, 23 Mar. 2023

This geode-like pastel bottle will keep drinks ice cold through the sunniest of Easter egg hunts. —Lauren Hubbard, Town & Country, 1 Mar. 2023

Michael Kors presented a new take on collar necklaces, ones that featured flat, oversized geode and disc pendants simply hung on a circular wire—which, from far away, brought Calder mobiles to mind. —Dale Arden Chong, ELLE, 23 Feb. 2023

Crystal Cave is actually the world's largest geode, discovered in 1897 by workers who were building a well. —Cailey Rizzo, Travel + Leisure, 23 Jan. 2023

It’s like a geode cracked open with facets within facets. —Steven Litt, cleveland, 22 Jan. 2023

Researcher Fernando Gázquez measures the geode’s atmospheric conditions to see if tourist visits are affecting the formations. —National Geographic, 13 Jan. 2023

The early sunset was hours ago, and the insulating clouds have vanished, leaving every surface frozen and glittering like the inside of a geode wherever the light from the street lamps touch. —Christie Wilcox, Discover Magazine, 25 Dec. 2016

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Word History

Etymology

Latin geodes, a gem, from Greek geōdēs earthlike, from gē earth

First Known Use

circa 1732, in the meaning defined at sense 1

Kids Definition

geode

noun

ge·​ode ˈjē-ˌōd 

: a stone having a cavity lined with crystals or mineral matter