The highest or most developed point, or most splendid stage, of something; culmination, peak, zenith.
A ring or half-ring with markings in which an artificial globe is installed and may spin.
In full celestial meridian: a great circle passing through the poles of the celestial sphere and the zenith for a particular point on the Earth's surface.
A line passing through the poles of any sphere; a notional line on the surface of a curved or round body (in particular, an eyeball).
Any of the pathways on the body along which chi or qi (life force) is thought to flow and, therefore, the acupoints are distributed; especially, one of twelve such pathways associated with organs of the body.
Chiefly followed by of: the middle period of someone's life, when they are at their full abilities or strength; one's prime.
In full terrestrial meridian: a great circle on the Earth's surface, passing through the geographic poles (the terrestrial North Pole and South Pole); also, half of such a circle extending from pole to pole, all points of which have the same longitude.
The place on the celestial meridian where it is crossed by the sun or a star at its highest point.
Of a celestial body: to reach its meridian.
To cause an object to reach the meridian or highest point of (something).
Relating to a meridian (in various senses); meridional.
Relating to midday or noon.
The time at which something peaks in some way (e.g., in vitality, in influence, in reknown) (by analogy with the waxing of the sun each day).
Approximately noon.
Noon.