See also: Meridian



Middle English meridian, from Anglo-Norman meridien, Middle French meridien (midday; the south; celestial meridian), and their source, Latin merīdiānum, noun use of neuter form of merīdiānus (meridian), ultimately from medius (middle) + diēs (day).


  • (UK) IPA(key): /məˈɹɪdɪən/
  • (US) IPA(key): /məˈɹɪdiən/
  • (file)
  • Rhymes: -ɪdiən


meridian (plural meridians)

  1. (obsolete) The south. [14th–17th c.]
    • 1601, Philemon Holland, translating Pliny, The Historie of the World:
      With vs the stars about the North Pole neuer go downe, and those contrariwise about the Meridian neuer rise.
  2. (obsolete) Midday, noon. [14th–19th c.]
  3. (astronomy) A great circle passing through the poles of the celestial sphere and the zenith for a particular point on the earth's surface. [from 14th c.]
  4. (astronomy, geography) An imaginary great circle on the Earth's surface, passing through the geographic poles, or that half of such a circle extending from pole to pole, all points of which have the same longitude. [from 14th c.]
  5. (figuratively) The highest or most developed point of something; culmination, splendour. [from 16th c.]
  6. (obsolete) A particular area or situation considered as having a specific identity or characteristic; the tastes or habits of a specific locale, group etc. [16th–19th c.]
    • 1751, Tobias Smollett, The Adventures of Peregrine Pickle, vol. II, ch. 75:
      Nor was his friend Godfrey a stranger to favours of the same kind; his accomplishments were exactly calculated for the meridian of female taste [] .
    • 1835, [Washington Irving], “[Newstead Abbey.] Superstitions of the Abbey.”, in Abbotsford and Newstead Abbey (The Crayon Miscellany; no. 2), Philadelphia, Pa.: [Henry Charles] Carey, [Isaac] Lea, & Blanchard, OCLC 2031450, page 140:
      She loves to gossip about the Abbey and Lord Byron, and was soon drawn into a course of anecdotes, though mostly of a humble kind, suited to the meridian of the housekeeper's room and servants' hall.
  7. The middle period of someone's life, when they are at full strength or abilities; one's prime. [from 17th c.]
  8. (mathematics) A line passing through the poles of any sphere; a notional line on the surface of a round or curved body. [from 18th c.]
  9. (obsolete, Scotland) A dram drunk at midday. [18th–19th c.]
  10. (acupuncture, traditional Chinese medicine) Any of the pathways on the body along which the vital energy is thought to flow and, therefore, the acupoints are distributed. [from 20th c.]
  11. (printing, US, dated) The size of type between double great primer and canon, standardized as 44-point.




meridian (not comparable)

  1. Meridional; relating to a meridian.
  2. Relating to noon
  3. Relating to the highest point or culmination.

Further readingEdit



From French méridien


meridian n (plural meridiane)

  1. meridian