say it: jee-AH-duh-see
geodesy is a noun meaning "the branch of geology that studies the shape of the earth and the determination of the exact position of geographical points". It carries one recorded sense.
the branch of geology that studies the shape of the earth and the determination of the exact position of geographical points
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for geodesy come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.