• (British, America) IPA: /ˈeɪˌpɛks/

apex (plural apices)

  1. The highest or the greatest point of something.
    the apex of the building
  2. (figuratively) The moment of greatest success, expansion, etc.
    the apex of civilization
    • 2002, Jeffrey Rowland, [https://web.archive.org/web/20100727160514/http://jjrowland.com/wigu/20020327.html WIGU adventures]
      It would be an intense disgust. The absolute apex of teen angst.
  3. (geometry) The topmost vertex of a cone or pyramid (in their conventional orientation).
  4. (chiefly, anatomy) The "pointed" fine end of something.
    1. The lowest part of the human heart.
    2. The deepest part of a tooth's root.
  5. (botany) The end of a leaf, petal or similar organ opposed to the end where it is attached to its support; the tip.
  6. (astronomy) The point on the celestial sphere toward which the sun appears to move relative to nearby stars.
  7. (physics) The lowest point on a pendant drop of a liquid.
  8. (mining, US) The end or edge of a vein nearest the surface.
  9. (typography) A diacritic in Classical Latin that resembles and gave rise to the acute.
  10. (typography) A diacritic in Middle Vietnamese that indicates /ŋ͡m/.
  11. (typography) A sharp upward point formed by two strokes that meet at an acute angle, as in "W", uppercase "A", and closed-top "4", or by a tapered stroke, as in lowercase "t".
  12. (attributive, ecology) The top of the food chain
    An apex predator, also known as an alpha predator or top predator, is a predator at the top of a food chain, with no natural predators
Synonyms Translations Translations Translations Translations Translations


  1. (aviation) Acronym of advance purchase excursion an air fare
Proper noun
  1. (British, trade union) Acronym of Association of Professional, Executive, Clerical and Computer Staff

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