GEODE
geode
(noun) (mineralogy) a hollow rock or nodule with the cavity usually lined with crystals
Source: WordNet® 3.1
Etymology
Noun
geode (plural geodes)
(geology) A nodule of stone having a cavity lined with mineral or crystal matter on the inside wall.
Anagrams
• Doege, Goede, ogeed
Source: Wiktionary
Ge"ode, n. Etym: [F. géode, L. geodes, fr. Gr. (Min.)
(a) A nodule of stone, containing a cavity, lined with crystals or
mineral matter.
(b) The cavity in such a nodule.
Source: Webster’s Unabridged Dictionary 1913 Edition