noun \ˈā-ˌpeks\

: the top or highest point of something

plural apex·es or api·ces\ˈā-pə-ˌsēz, ˈa-\

Full Definition of APEX

a :  the uppermost point :  vertex <the apex of a mountain>
b :  the narrowed or pointed end :  tip <the apex of the tongue>
:  the highest or culminating point <the apex of his career>

Examples of APEX

  1. <she reached the apex of fame, only to find it wasn't what she expected>
  2. <the apex of the spear>

Origin of APEX

First Known Use: 1601


noun \ˈā-ˌpeks\   (Medical Dictionary)
plural apex·es or api·ces \ˈā-pə-ˌsēz\

Medical Definition of APEX

: a narrowed or pointed end of an anatomical structure: as a : the narrow somewhat conical upper part of a lung extending into the root b : the lower pointed end of the heart situated in humans opposite the space between the cartilages of the fifth and sixth ribs on the left side c : the extremity of the root of a tooth


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