Answer: geoid

AnswerCrossword Clue
GEOIDSurface like Earth's
GEOIDImaginary surface coinciding with sea level
GEOIDEarthlike shape
GEOIDMean sea-level line
GEOIDImaginary surface coinciding with the earth's sea level
GEOIDEarth's surface, hypothetically
GEOIDEllipsoid geometric figure
GEOIDEllipsoid flattened at the poles
GEOIDGeographical geometric figure
GEOIDEarth's shape, hypothetically
GEOIDEarth's shape
geoida hypothetical surface of the earth
geoidimaginary surface that coincides with mean sea level in the ocean and its extension through the continents
geoidthe surface within or around the earth that is everywhere normal to the direction of gravity and coincides with mean sea level in the oceans