| 单词 | geoid |
| 释义 | geoid —geoidal, adj. /jee"oyd/, n. 1. an imaginary surface that coincides with mean sea level in the ocean and its extension through the continents. 2. the geometric figure formed by this surface, an ellipsoid flattened at the poles. [1880-85; < Gk geoeidés earthlike. See GEO-, -OID] |
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