meridian

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meridian

 [mĕ-rid´e-an]
an imaginary line on the surface of a globe or sphere, connecting the opposite ends of its axis. adj., adj merid´ional.

me·rid·i·an

(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. Synonym(s): meridianus [TA]
2. In acupuncture, the lines connecting different anatomic sites.
[L. meridianus, pertaining to midday, on the south side, southern]

meridian

Chinese medicine
Any of 12 channels that are believed to extend over the length of the body and believed to carry chi (vital energy) through the body; the meridian concept is central to acupuncture and other forms of oriental medicine. Mainstream Western medicine has been frustrated by its inability to verify the presence of meridians; data suggest that the “trigger points” (which, when stimulated, ameliorate pain elsewhere in the body) identified by neurologists may be identical to acupuncture points.

me·rid·i·an

(mĕr-id'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. acupuncture The lines connecting different anatomic sites.

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.
Enlarge picture
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.

Meridian

A section of a sphere. For example, longitude or latitude on the globe. Or, on a clock, a section going through 12:00-6:00 or 3:00-9:00, etc.

me·rid·i·an

(mĕr-id'ē-an)
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.