— geodic /jee od"ik/ , geodal /jee ohd"l/ , adj.
/jee"ohd/ , n.
1. a hollow concretionary or nodular stone often lined with crystals.
2. the hollow or cavity of this.
3. any similar formation.
[ 1670-80; géode geodes geódes earthlike. See GEO-, -ODE 1 ]