meridional

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Related to Zonal and meridional: Meridionally

me·rid·i·o·nal

(mĕ-rid'ē-ŏ-năl),
Relating to a meridian.
Farlex Partner Medical Dictionary © Farlex 2012

me·rid·i·o·nal

(mĕ-rid'ē-ŏ-năl)
Relating to a meridian.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

meridian

(mĕ-rĭd′ē-ăn) [L. meridianus, pert. to noon]
1. An imaginary line encircling a globe at right angles to its equator and passing through the poles, or half of such a line.
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QI MERIDIANS
2. In complementary medicine, traditional Chinese medicine, and acupuncture, any of several pathways believed to conduct energy between the surface of the body and the internal organs. Blockage along these pathways is believed to disrupt energy flow (chi or qi) and to cause imbalances that are reflected in symptoms or disease. Meridians and the energy flows they are thought to direct have eluded identification by western scientific methods. See: illustration
3. In visual field testing, a line that denotes an equal level of visual registration. meridional, adjective

meridian of eye

A circle passing through anterior and posterior poles of the eyeball.
Medical Dictionary, © 2009 Farlex and Partners

meridional

pertaining to a meridian - a line running from pole to pole of a rounded structure.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005