- Being at, or pertaining to, midday; belonging to, or
passing through, the highest point attained by the sun in his diurnal
course. - Pertaining to the highest point or culmination; as,
meridian splendor. - Midday; noon. - Hence: The highest point, as of success, prosperity, or
the like; culmination. - A great circle of the sphere passing through the poles of
the heavens and the zenith of a given place. It is crossed by the sun
at midday. - A great circle on the surface of the earth, passing
through the poles and any given place; also, the half of such a circle
included between the poles.
Meaning of 'meridian' (Princeton's WordNet)
1 . meridian
[ n]
Meaning (1): - the highest level or degree attainable; the highest stage of development
Example in sentence:
...catapulted Einstein to the pinnacle of fame;
at the height of her career;
at the top of his profession;
his landscapes were deemed the acme of beauty;
so many highest superlatives achieved by man;
summer was at its peak;
the artist's gifts are at their acme;
the peak of perfection;
the summit of his ambition
Meaning (2): - an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator
Example in sentence:
all points on the same meridian have the same longitude
3 . meridian
[ a]
Meaning (3): - of or happening at noon
Example in sentence:
meridian hour
4 . meridian
[ s]
Meaning (4): - being at the best stage of development