equator
Pronunciation: ē-kwā′tŏr
Definition: A line encircling a globular body, equidistant at all points from the two poles; the periphery of a plane cutting a sphere at the midpoint of, and at right angles to, its axis.
[Mediev. L. aequator, fr. L. aequo, to make equal]
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Examples: glitazone, GI cocktail, etc.
