meridian >> məˈrɪdɪən
Definition: [noun] a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles.
Example: the European Broadcasting Area extends from the Atlantic to the meridian 40°E
Definition: [noun] (in acupuncture and Chinese medicine) each of a set of pathways in the body along which vital energy is said to flow.
Example: the slow movements and postures of t'ai chi open up and align the meridians of the body
Definition: [adjective] relating to or situated at a meridian.
Example: the meridian moon