trigonal

T1R1I1G2O1N1A1L1
UK/ˈtrɪɡənəl/

adjective

Having three angles and three sides, triangular.

Similar
rhombohedralsymmetricalsymmetric
OriginLatin trigōnālis →
UncommonScrabble 9
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Meanings

adjectivetrigonal (comparative more trigonal, superlative most trigonal)

comparative more trigonal · superlative most trigonal

  1. Having three angles and three sides, triangular.
  2. chemistryOf or pertaining to a crystal system with three equal and equally inclined but not perpendicular axes.
  3. anatomyRelating to the trigone

Synonyms & antonyms

adjectivehaving threefold symmetry

Similar
rhombohedralsymmetricalsymmetric
Also see
rhombohedraltriangular

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latintrigōnālis“triangular”
  2. Englishtrigonal

From Latin trigōnālis (“triangular”), equivalent to trigon + -al.

More words from Latin

Full word history & related roots →

Translations

Bulgarian тригонален
  • тригонален (trigonalen)crystallography
Chinese Mandarin 三方
  • 三方 (sānfāng)crystallography
Dutch driehoekig, trigonaal
  • driehoekigtriangular
  • trigonaaltriangular
  • trigonaalcrystallography
Finnish kolmikulmainen, trigoninen
  • kolmikulmainentriangular
  • trigoninencrystallography
German trigonal
  • trigonaltriangular
Italian trigono
  • trigonotriangular
Cite this entry
APA

trigonal. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/trigonal

MLA

“trigonal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trigonal. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “trigonal,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/trigonal.

Source: trigonal on Wiktionary, CC BY-SA 4.0.