trigone

T1R1I1G2O1N1E1
UK/trɪˈɡəʊn/UK/ˈtrʌɪɡəʊn/

noun

One of the thickenings of the cell wall at the angles where several cells join.

Scrabble 8

Meanings

nountrigone (plural trigones)

plural trigones

  1. biologyOne of the thickenings of the cell wall at the angles where several cells join.

    Leaf cells are about 25–30 μm, with thin walls and bulging trigones.

    1992, Marie L. Hicks, Guide to the Liverworts of North Carolina, page 66
    1 more example

    The epidermal cells of the capsule wall of Jubulopsis, with nodose "trigones" at the angles, are very reminiscent of what one finds in Frullania spp.

    1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, pages 4-5
  2. anatomyA smooth triangular area on the inner surface of the bladder, bounded by the apertures of the ureters and urethra; a similar region of a mitral valve

Origin

  1. Ancient Greekτρῐ́γωνον
  2. Latintrigōnum
  3. Frenchtrigone
  4. Englishtrigone

From French trigone, from Latin trigōnum, from Ancient Greek τρῐ́γωνον (trĭ́gōnon). Doublet of trigon and trigonon.

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Rhymes & wordplay

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Cite this entry
APA

trigone. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/trigone

MLA

“trigone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trigone. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “trigone,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/trigone.

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