vertex

play
noun ver·tex \ˈvər-ˌteks\

Definition of vertex

plural

vertices

play \ˈvər-tə-ˌsēz\ also

vertexes

  1. 1 :  the top of the head

  2. 2a :  the point opposite to and farthest from the base in a figureb :  a point (as of an angle, polygon, polyhedron, graph, or network) that terminates a line or curve or comprises the intersection of two or more lines or curvesc :  a point where an axis of an ellipse, parabola, or hyperbola intersects the curve itself

  3. 3 :  a principal or highest point :  summit the vertex of the hill

Recent Examples of vertex from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vertex'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of vertex

Middle English, top of the head, from Latin vertic-, vertex, vortic-, vortex whirl, whirlpool, top of the head, summit, from vertere to turn

Other Mathematics and Statistics Terms


VERTEX Defined for English Language Learners

vertex

play
noun

Definition of vertex for English Language Learners

  • : a point where two lines meet to form an angle; especially : the point on a triangle that is opposite to the base


VERTEX Defined for Kids

vertex

play
noun ver·tex \ˈvər-ˌteks\

Definition of vertex for Students

plural

vertices

\ˈvər-tə-ˌsēz\ also

vertexes

  1. 1 :  the point opposite to and farthest from the base of a geometrical figure

  2. 2 :  the common endpoint of the sides of an angle


Medical Dictionary

vertex

play
noun ver·tex \ˈvər-ˌteks\

Medical Definition of vertex

plural

vertices

\ˈvərt-ə-ˌsēz\play also

vertexes

  1. 1:  the top of the head

  2. 2:  the highest point of the skull



Seen and Heard

What made you want to look up vertex? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

set in a bent position

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!