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Webster 1913 Edition


Triangular

Tri-an′gu-lar

,
Adj.
[L.
triangularis
: cf. F.
triangulaire
.]
1.
Having three angles; having the form of a triangle.
2.
(Bot.)
Oblong or elongated, and having three lateral angles;
as, a
triangular
seed, leaf, or stem
.
Triangular compasses
,
compasses with three legs for taking off the angular points of a triangle, or any three points at the same time.
Triangular crab
(Zool.)
,
any maioid crab; – so called because the carapace is usually triangular.
Triangular numbers
(Math.)
,
the series of numbers formed by the successive sums of the terms of an arithmetical progression, of which the first term and the common difference are 1. See
Figurate numbers
, under
Figurate
.

Webster 1828 Edition


Triangular

TRIAN'GULAR

,
Adj.
Having three angles.
In botany, a triangular stem has three prominent longitudinal angles; a triangular leaf has three prominent angles, without any reference to their measurement or direction.

Definition 2024


triangular

triangular

English

Adjective

triangular (comparative more triangular, superlative most triangular)

  1. Shaped like a triangle.
    • 1963, Margery Allingham, “Foreword”, in The China Governess:
      A very neat old woman, still in her good outdoor coat and best beehive hat, was sitting at a polished mahogany table on whose surface there were several scored scratches so deep that a triangular piece of the veneer had come cleanly away, [].
  2. Of, or pertaining to, triangles.
  3. Having a triangle as a base; as, a triangular prism, a triangular pyramid.
  4. Having three elements or parties; trilateral, tripartite.

Synonyms

Related terms

Translations


Catalan

Adjective

triangular m, f (masculine and feminine plural triangulars)

  1. triangular

Galician

Adjective

triangular m, f (plural triangulares)

  1. triangular, shaped like a triangle
  2. having a triangle as a base
  3. having three elements or parties

Related terms


Portuguese

Etymology

From Late Latin triangularis.

Pronunciation

  • IPA(key): /tɾi.ɐ̃.ɡu.ˈlaɾ/

Adjective

triangular m, f (plural triangulares, comparable)

  1. triangular

Verb

triangular (first-person singular present indicative triangulo, past participle triangulado)

  1. to triangulate

Conjugation


Spanish

Adjective

triangular m, f (plural triangulares)

  1. triangular

Verb

triangular (first-person singular present triangulo, first-person singular preterite triangulé, past participle triangulado)

  1. to triangulate

Conjugation