[1] : The Collaborative International Dictionary of English v.0.48

apex \a"pex\, n.; pl. e. apexes; l. apices. l.
   1. the tip, top, point, or angular summit of anything; as,
      the apex of a mountain, spire, or cone; the apex, or tip,
      of a leaf.
      1913 webster

   2. mining the end or edge of a vein nearest the surface.
      u.s.
      1913 webster

   apex of the earth's motion astron., that point of the
      heavens toward which the earth is moving in its orbit.
      1913 webster aphaeresis
see also:
apexes apices apex of the earth's motion 

[2] : WordNet (r) 2.0

apex
     n 1: the highest point of something; "at the peak of the
          pyramid" syn: vertex, peak, acme
     2: the point on the celestial sphere toward which the sun and
        solar system appear to be moving relative to the fixed
        stars syn: solar apex, apex of the sun's way ant: antapex
     also: apices pl
see also:
vertex peak acme solar apex apex of the sun's way antapex 
apices 

[3] : Moby Thesaurus II by Grady Ward, 1.0

126 moby thesaurus words for "apex":
   l, olympian heights, achievement, acme, aerial heights,
   alveolar ridge, alveolus, angle, apogee, arytenoid cartilages,
   attainment, back, bend, bifurcation, bight, blade, brow, cant, cap,
   capstone, chevron, climax, cloud nine, coin, consummation, corner,
   crank, crescendo, crest, crook, crotchet, crown, culmen,
   culmination, deflection, dizzy heights, dogleg, dorsum, edge,
   elbow, elevation, ell, eminence, ether, extreme limit, extremity,
   fork, furcation, hard palate, heaven, heavens, height, heights,
   high noon, highest pitch, highest point, hook, inflection, knee,
   larynx, last word, lift, limit, lips, maximum, meridian,
   mountaintop, nasal cavity, ne plus ultra, no place higher, nook,
   noon, noontide, oral cavity, palate, peak, pharyngeal cavity,
   pharynx, pinnacle, pitch, point, pole, prime, prominence, quoin,
   raise, realization, ridge, rise, rising ground, roof,
   seventh heaven, sky, soft palate, speech organ, spire, steep,
   stratosphere, summit, swerve, syrinx, teeth, teeth ridge, tip,
   tip-top, tongue, top, ultimate, upmost, upper extremity, uppermost,
   uprise, utmost, vantage ground, vantage point, veer, very top,
   vocal chink, vocal cords, vocal folds, vocal processes, voice box,
   zag, zenith, zig, zigzag

[4] : Virtual Entity of Relevant Acronyms (Version 1.9, June 2002)

apex
     advanced packet exchange
     
     

[5] : U.S. Gazetteer (1990)

apex, nc town, fips 1520
  location: 35.72579 n, 78.84503 w
  population 1990: 4968 1826 housing units
  area: 10.8 sq km land, 0.0 sq km water
  zip codes: 27502

[6] : U.S. Gazetteer Places (2000)

apex, nc -- u.s. town in north carolina
   population 2000:    20212
   housing units 2000: 8028
   land area 2000:     10.536900 sq. miles 27.290445 sq. km
   water area 2000:    0.059767 sq. miles 0.154797 sq. km
   total area 2000:    10.596667 sq. miles 27.445242 sq. km
   fips code:            01520
   located within:       north carolina nc, fips 37
   location:             35.731952 n, 78.852878 w
   zip codes 1990:     27502
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    apex, nc
    apex

Apex >> A Words
Apex, definition of term: Apex
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