Apex
English Meaning
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.
- The highest point; the vertex: the apex of a triangle; the apex of a hill.
- The point of culmination. See Synonyms at summit.
- The usually pointed end of an object; the tip: the apex of a leaf.