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Polar axis
(1) The axis about which the Earth, or an figure representing the Earth, rotates. (2) The shortest diameter of an ellipsoid. (3) The shortest diameter of an ellipse. (4) That axis, in a polar or spherical coordinate system, which is the primary axis to which directions are referred (i.e., from which angles are measured.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Earth science
- Category: Mapping science
- Company: American Congress on Surveying & Mapping
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