What's the difference between and

# Vertex vs Test - What's the difference?

vertex | test |

## As nouns the difference between vertex and test

is that vertex is the highest point of something while test is .

# vertex

## English

(wikipedia vertex)

### Noun

(en-noun)
• The highest point of something.
• (anatomy) The highest surface on the skull.
• (geometry) The common point of the two rays of the angle, or its equivalent structure in polyhedra (meeting of edges) and higher order polytopes.
• (mathematics) A point on the curve with a local minimum or maximum of curvature.
• (graph theory) One of the elements of a graph joined or not by edges to other vertices.
• (computer graphics) A point in space, usually given in terms of its Cartesian coordinates.
• (optics) The point where the surface of a lens crosses the optical axis.
• (nuclear, or, particle physics) An interaction point.
• (astrology) The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.
• #### Synonyms

* (highest point) acme, apex, peak, top * (part of a graph) node

#### Derived terms

* vertexal, vertexial

* Mathworld article on vertices of polyhedra * Mathworld article on verticies of polygons ----

# test

## English

### Etymology 1

From (etyl) ; see terra, thirst.

#### Noun

(en noun)
• A cupel or cupelling hearth in which precious metals are melted for trial and refinement.
• A , trial.
• * {{quote-magazine, year=2012, month=March-April
• , author=Colin Allen , title=Do I See What You See? , volume=100, issue=2, page=168 , magazine=(American Scientist) citation , passage=Numerous experimental tests and other observations have been offered in favor of animal mind reading, and although many scientists are skeptical, others assert that humans are not the only species capable of representing what others do and don’t perceive and know.}}
• A session in which a product or piece of equipment is examined under everyday or extreme conditions to evaluate its durability, etc.
• A Test match.
• (marine biology) The external calciferous shell, or endoskeleton, of an echinoderm, e.g. sand dollars]] and sea urchins.
• (botany) Testa; seed coat.
• Judgment; distinction; discrimination.
• * Dryden
• Who would excel, when few can make a test / Betwixt indifferent writing and the best?
##### Synonyms
* (challenge) challenge, trial * (sense) quiz, examination
##### Antonyms
* (challenge) breeze * (sense) recess
##### Derived terms
* acid test * babysitter test * blood test * flame test * inkblot test * litmus test * nose test * Rorschach test * smell test * smoke test * sniff test * stress test * test case * tester * test tube
##### Descendants
* German: (l) * Dutch: (l)

#### Verb

(en verb)
• To refine (gold, silver, etc.) in a test or cupel; to subject to cupellation.
• To .
• Climbing the mountain tested our stamina.
• To put to the proof; to prove the truth, genuineness, or quality of by experiment, or by some principle or standard; to try.
• to test''' the soundness of a principle; to '''test the validity of an argument
• * Washington
• Experience is the surest standard by which to test the real tendency of the existing constitution.
• To place a product or piece of equipment under everyday and/or extreme conditions and examine it for its durability, etc.
• * {{quote-magazine, year=2013, month=May-June, author= Charles T. Ambrose
• , title= Alzheimer’s Disease , volume=101, issue=3, page=200, magazine=(American Scientist) , passage=Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems— […]. Such a slow-release device containing angiogenic factors could be placed on the pia mater covering the cerebral cortex and tested in persons with senile dementia in long term studies.}}
• (copulative) To be shown to be by test.
• (chemistry) To examine or try, as by the use of some reagent.
• to test a solution by litmus paper
##### Descendants
* German: (l)

### Etymology 2

From (etyl) tester, from (etyl) .

#### Noun

(en noun)
• (obsolete) A witness.
• * Ld. Berners
• Prelates and great lords of England, who were for the more surety tests of that deed.

#### Verb

(en verb)
• (obsolete) To make a testament, or will.
• ### Anagrams

* English copulative verbs 1000 English basic words ----