Word Study
geode
CIDE DICTIONARY
geode, n. [F. géode, L. geodes, fr. Gr. earthlike; ge`a, gh^, the earth + e'i^dos form.].
A nodule of stone, containing a cavity, lined with crystals or mineral matter. [1913 Webster]
OXFORD DICTIONARY
geode, n.
1 a small cavity lined with crystals or other mineral matter.
2 a rock containing such a cavity.
1 a small cavity lined with crystals or other mineral matter.
2 a rock containing such a cavity.
Derivative
geodic adj.
Etymology
L geodes f. Gk geodes earthy f. ge earth
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