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Medical Term:


Pronunciation: mĕ-rid′ē-an


  1. A line encircling a globular body at right angles to its equator and touching both poles, or the half of such a circle extending from pole to pole.
  2. In acupuncture, the lines connecting different anatomic sites.

Synonym(s): meridianusTA

[L. meridianus, pertaining to midday, on the south side, southern]