Dictionary > English Dictionary > Definition, synonym and antonym of apex
Meaning of apex by Wiktionary Dictionary



    From Latin apex ( “point, tip, summit” ) .


    • ( UK, US ) IPA: /ˈeɪ.pɛks/


    apex ( plural: apices or apexes )

    1. The highest point of something .
      the apex of the building
    2. ( figuratively ) The moment of greatest success, expansion, etc .
      the apex of civilization
    3. ( geometry ) The topmost vertex of a cone or pyramid ( in their conventional orientation ) .
    4. ( chiefly anatomy ) The pointed 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. ( mining, US ) The end or edge of a vein nearest the surface .


    External links

    • apex in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
    • apex in The Century Dictionary, The Century Co., New York, 1911
    • apex at OneLook Dictionary Search

Explanation of apex by Wordnet Dictionary


    1. the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars

    2. the highest point ( of something )

    Definition of apex by GCIDE Dictionary


    1. Apex 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.”

      2. ( Mining ) The end or edge of a vein nearest the surface. [U.S.]

      Apex of the earth's motion ( Astron. ), that point of the heavens toward which the earth is moving in its orbit.