Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The highest point; the vertex.
  • noun The highest level or degree that is attained. synonym: summit.
  • noun The usually pointed end of an object; the tip.

from The Century Dictionary.

  • noun In projective geometry, the point determined by 3 planes.
  • noun plural The abacusmarks.
  • noun The tip, point, or summit of anything.
  • noun In geology, the top of an anticlinal fold of strata. [Pennsylvania coal-mines.] [This term as used in the U. S. Revised Statutes has been the occasion of much litigation. It is supposed to mean something nearly equivalent to outcrop (which see); but precisely in what it differs from outcrop has not been, neither does it seem capable of being, distinctly made out.]
  • noun In mining, the landing-point at the top of a slope.
  • noun In Roman antiquity, a symbolic ornament which the flamens and some other priests were required by law to wear.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The tip, top, point, or angular summit of anything
  • noun (Mining), U.S. The end or edge of a vein nearest the surface.
  • noun (Astron.) that point of the heavens toward which the earth is moving in its orbit.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The highest point of something.
  • noun figuratively The moment of greatest success, expansion, etc.
  • noun geometry The topmost vertex of a cone or pyramid (in their conventional orientation).
  • noun The pointed end of something.
  • noun botany The end of a leaf, petal or similar organ opposed to the end where it is attached to its support; the tip.
  • noun astronomy The point on the celestial sphere toward which the sun appears to move relative to nearby stars.
  • noun physics The lowest point on a pendant drop of a liquid.
  • noun mining, US The end or edge of a vein nearest the surface.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the highest point (of something)
  • noun the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin apex ("point, tip, summit").

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Examples

  • The breaking point, so to speak, of man's vision, that ecstasy of comprehension which I call his apex-thought, is the moment which makes him aware of these companions 'existence.

    The Complex Vision John Cowper Powys 1917

  • However, if you a forty first experiment, and it tells you that the apex is somewhere wildly different in the picture, it would have told you that either you made some mistake, or that your assumption, that the standard model is the only source of CP violation, was incorrect.

    A Non-Technical Explanation of Flavo(u)r Physics « Imaginary Potential 2008

  • But his early work could be viewed as lacking in seriousness, and thus my choice for his apex is Americana, the 2001 volume that would be the last verse collection to appear under his name during his lifetime, anyway; I suspect we may see a posthumous collection.

    Archive 2009-02-01 Rus Bowden 2009

  • My thought process begins where the regular human apex is at.

    The Big Aristotle 2004

  • My thought process begins where the regular human apex is at.

    July 2004 2004

  • PGA Tour may have reached a short-term apex financially given the weakened economy, sports sponsorships generally being harder to come by, and a slow erosion of fan interest in the sport which is partly related to Tiger's lost dominance.

    Forbes.com: News Patrick Rishe 2011

  • Ten years ago, while studying some roots, almost incidentally he discovered that a small part of the root called the apex is better protected and consumes more oxygen than the rest of the plant.

    Plants Will Think For Us 2010

  • MOSS: What I make is that this is a very disturbed family and that the apex is a very disturbed girl.

    CNN Transcript Feb 18, 2009 2009

  • The apex is the King or Queen, depending on the nation with its base the national family.

    Archive 2008-09-14 de Brantigny........................ 2008

  • The apex is the King or Queen, depending on the nation with its base the national family.

    Democracy de Brantigny........................ 2008

Comments

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  • the tip, point, or vertex; summit.

    May 26, 2009