• synonyms

semiminor axis

[sem-ee-mahy-ner, sem-ahy-, sem-ee-, sem-ahy-]
See more synonyms for semiminor axis on Thesaurus.com
  1. Geometry. one half the minor axis of an ellipse.
  2. Astronomy. one half the minor axis of the ellipse that one celestial body describes around another, as a planet around the sun.
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Origin of semiminor axis

First recorded in 1925–30; semi- + minor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018