geode

[ jee-ohd ]

/ ˈdʒi oʊd /

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noun

a hollow concretionary or nodular stone often lined with crystals.

the hollow or cavity of this.

any similar formation.

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Origin of geode

1670–80; <French géode<Latin geōdēs<Greek geṓdēs earthlike. See geo-, -ode¹

OTHER WORDS FROM geode

ge·od·ic

[jee-od-ik], /dʒiˈɒd ɪk/, ge·od·al

[jee-ohd-l], /dʒiˈoʊd l/, adjective

Words nearby geode

geochronometry, geocline, geocode, geocorona, geod., geode, geodemographics, geodesic, geodesic dome, geodesic line, geodesy

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use geode in a sentence

I looked it over as if it were some strange geode, compressed as it was by time and tread.
The Strange and Mysterious Death of Mrs. Jerry Lee Lewis|Richard Ben Cramer|January 11, 2014|DAILY BEAST
For , m ync btre, gif ow sw ync, t w ac s bc on t geode wnden e w ealle gecnwan mgen.
Anglo-Saxon Grammar and Exercise Book|C. Alphonso Smith
A geode is a hollow shell of stone, usually quartz, lined with crystals pointing toward the center.
The Chautauquan, Vol. III, March 1883|The Chautauquan Literary and Scientific Circle
The entire region is an enormously large, perfectly formed, and undamaged geode.
Cave Regions of the Ozarks and Black Hills|Luella Agnes Owen

No date; no place mentioned; we note the suggestion that it was only a geode, which had been upon the ground in the first place.
The Book of the Damned|Charles Fort
Geode, an irregular shaped stone, containing a small cavity.
A Manual of the Antiquity of Man|J. P. MacLean

British Dictionary definitions for geode

geode

/ (ˈdʒiːəʊd) /

noun

a cavity, usually lined with crystals, within a rock mass or nodule

Derived forms of geode

geodic (dʒɪˈɒdɪk), adjective

Word Origin for geode

C17: from Latin geōdēs a precious stone, from Greek: earthlike; see geo-, -ode 1

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

Scientific definitions for geode

geode

[ jē′ōd′ ]

A small, hollow, usually rounded rock lined on the inside with inward-pointing crystals. Geodes form when mineral-rich water entering a cavity in a rock undergoes a sudden change in pressure or temperature, causing crystals to form from the solution and line the cavity's walls.