Apex definitions

ā'pĕks
The definition of apex is the highest part of something.

The peak of a mountain is an example of its apex.

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The highest point; the vertex.

The apex of a triangle; the apex of a hill.

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The highest level or degree that is attained.
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The usually pointed end of an object; the tip.

The apex of a leaf.

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The highest point; peak; vertex.
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The pointed end; tip.
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The highest point of interest, excitement, etc.; climax.
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The edge or outcrop of a vein nearest the surface.
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The highest point, especially the vertex of a triangle, cone, or pyramid.
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(UK, trade union) Association of Professional, Executive, Clerical and Computer Staff.
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(aviation) Advanced Purchase Excursion (Air fare)
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Origin of apex

Latin