ver·ti·ces

[vur-tuh-seez]
noun
a plural of vertex.
Dictionary.com Unabridged

ver·tex

[vur-teks]
noun, plural ver·tex·es, ver·ti·ces [-tuh-seez] .
1.
the highest point of something; apex; summit; top: the vertex of a mountain.
2.
Anatomy, Zoology. the crown or top of the head.
3.
Craniometry. the highest point on the midsagittal plane of the skull or head viewed from the left side when the skull or head is in the Frankfurt horizontal.
4.
Astronomy. a point in the celestial sphere toward which or from which the common motion of a group of stars is directed.
5.
Geometry.
a.
the point farthest from the base: the vertex of a cone or of a pyramid.
b.
a point in a geometrical solid common to three or more sides.
c.
the intersection of two sides of a plane figure.

Origin:
1560–70; < Latin: a whirl, top (of the head), equivalent to vert(ere) to turn + -ex (stem -ic-) noun suffix

vertex, vortex.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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00:10
Vertices is always a great word to know.
So is zedonk. Does it mean:
a stew of meat, vegetables, potatoes, etc.
the offspring of a zebra and a donkey.
Collins
World English Dictionary
vertex (ˈvɜːtɛks) [Click for IPA pronunciation guide]
 
n , pl -texes, -tices
1.  the highest point
2.  maths
 a.  the point opposite the base of a figure
 b.  the point of intersection of two sides of a plane figure or angle
 c.  the point of intersection of a pencil of lines or three or more planes of a solid figure
3.  astronomy a point in the sky towards which a star stream appears to move
4.  anatomy the crown of the head
 
[C16: from Latin: highest point, from vertere to turn]

vertices (ˈvɜːtɪˌsiːz) [Click for IPA pronunciation guide]
 
n
(in technical and scientific senses only) a plural of vertex

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

vertex
1570, "the point opposite the base in geometry," from L. vertex "highest point," lit. "the turning point," originally "whirling column, whirlpool," from vertere "to turn" (see versus). Meaning "highest point of anything" is first attested 1641.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

vertex ver·tex (vûr'těks')
n. pl. ver·tex·es or ver·ti·ces (-tĭ-sēz')

  1. The highest point; the apex.

  2. The topmost point of the vault of the skull; the crown of the head.

  3. The portion of the fetal head bounded by the planes of the trachelobregmatic and biparietal diameters, with the posterior fontanel at the apex.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
vertex   (vûr'těks')  Pronunciation Key 
Plural vertices (vûr'tĭ-sēz') or vertexes
  1. The point at which the sides of an angle intersect.

  2. The point of a triangle, cone, or pyramid that is opposite to and farthest away from its base.

  3. A point of a polyhedron at which three or more of the edges intersect.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The all-pairs shortest-path problem involves finding the shortest path between
  all pairs of vertices in a graph.
If no vertices are specified, the command is applied to all vertices of each
  surface.
The third form of the command uses existing vertices to split the curve.
The vertices are simply the branch points, ie, the atoms with three or more
  links to the rest of the ensemble.
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