apex

Definitions:

  • The highest point; the vertex.
  • The highest level or degree that is attained. <i>synonym</i>: <strong> summit</strong>.
  • The usually pointed end of an object; the tip.
  • In <em>projective geometry</em>, the point determined by 3 planes.
  • <em>plural</em> The abacusmarks.
  • The tip, point, or summit of anything.
  • In <em>geology</em>, 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 <em>outcrop</em> (which see); but precisely in what it differs from <internalXref urlencoded="outcrop">outcrop</internalXref> has not been, neither does it seem capable of being, distinctly made out.]
  • In <em>mining</em>, the landing-point at the top of a slope.
  • In <em>Roman antiquity</em>, a symbolic ornament which the flamens and some other priests were required by law to wear.
  • The tip, top, point, or angular summit of anything
  • The end or edge of a vein nearest the surface.
  • that point of the heavens toward which the earth is moving in its orbit.
  • The highest point of something.
  • The moment of greatest <xref>success</xref>, <xref>expansion</xref>, etc.
  • The topmost <xref>vertex</xref> of a <xref>cone</xref> or <xref>pyramid</xref> (in their conventional orientation).
  • The <xref>pointed</xref> end of something.
  • The end of a <xref>leaf</xref>, <xref>petal</xref> or similar organ opposed to the end where it is attached to its support; the <xref>tip</xref>.
  • The point on the celestial sphere toward which the sun appears to move relative to nearby stars.
  • The lowest point on a pendant drop of a liquid.
  • The end or edge of a <xref>vein</xref> nearest the <xref>surface</xref>.
  • the highest point (of something)
  • the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
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