Library / English Dictionary

TRIANGLE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A percussion instrument consisting of a metal bar bent in the shape of an open triangle

Classified under:

Nouns denoting man-made objects

Hypernyms ("triangle" is a kind of...):

percussion instrument; percussive instrument (a musical instrument in which the sound is produced by one object striking another)

Sense 2

Meaning:

Any of various triangular drafting instruments used to draw straight lines at specified angles

Classified under:

Nouns denoting man-made objects

Hypernyms ("triangle" is a kind of...):

drafting instrument (an instrument used by a draftsman in making drawings)

Sense 3

Meaning:

A small northern constellation near Perseus between Andromeda and Aries

Synonyms:

Triangle; Triangulum

Classified under:

Nouns denoting natural objects (not man-made)

Instance hypernyms:

constellation (a configuration of stars as seen from the earth)

Sense 4

Meaning:

A three-sided polygon

Synonyms:

triangle; trigon; trilateral

Classified under:

Nouns denoting two and three dimensional shapes

Hypernyms ("triangle" is a kind of...):

polygon; polygonal shape (a closed plane figure bounded by straight sides)

Hyponyms (each of the following is a kind of "triangle"):

acute-angled triangle; acute triangle (a triangle whose interior angles are all acute)

equiangular triangle; equilateral triangle (a three-sided regular polygon)

isosceles triangle (a triangle with two equal sides)

oblique triangle (a triangle that contains no right angle)

obtuse-angled triangle; obtuse triangle (a triangle that contains an obtuse interior angle)

right-angled triangle; right triangle (a triangle with one right angle)

scalene triangle (a triangle with no two sides of equal length)

cuneus; wedge; wedge shape (any shape that is triangular in cross section)

Derivation:

triangular (having three sides)

triangular (having three angles; forming or shaped like a triangle)

triangulate (survey by triangulation)

triangulate (divide into triangles or give a triangular form to)

Sense 5

Meaning:

Something approximating the shape of a triangle

Example:

the coastline of Chile and Argentina and Brazil forms two legs of a triangle

Classified under:

Nouns denoting two and three dimensional shapes

Hypernyms ("triangle" is a kind of...):

form; shape (the spatial arrangement of something as distinct from its substance)

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