Geophysical Data System
[jee-ohd] /ˈdʒi oʊd/ noun 1. a hollow concretionary or nodular stone often lined with crystals. 2. the hollow or cavity of this. 3. any similar formation. /ˈdʒiːəʊd/ noun 1. a cavity, usually lined with crystals, within a rock mass or nodule n. rounded stone with a hollow center lined with crystals, 1670s, from French géode, […]
/ˌdʒiːəʊdɛməˈɡræfɪks/ plural noun 1. (functioning as sing) the study and grouping of the people in a geographical area according to socioeconomic criteria, esp for market research
genospecies ge·no·spe·cies (jē’nə-spē’shēz, -sēz, jěn’ə-) pl.n. A group of organisms that can interbreed.