triomino

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UK/tɹaɪˈɒmɪnəʊ/US/tɹaɪˈɑməˌnoʊ/

noun

A triangular tile, used in triominoes, a variant of the game of dominoes.

“Note: as the game plays, polyiamonds are created.”

OriginEnglish tri- ← Latin tri- ← Proto-Italic *tri- →
Scrabble 10
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Meanings

triomino1

nountriomino (plural triominoes or triominos)

plural triominoes · plural triominos

  1. gamesA triangular tile, used in triominoes, a variant of the game of dominoes.

    Note: as the game plays, polyiamonds are created.

triomino2

nountriomino (plural triominoes or triominos)

plural triominoes · plural triominos

  1. alternativegeometryAlternative form of tromino (“a polyomino consisting of three squares connected edge to edge”)

Origin

triomino · noun

From tri- + (d)omino.

Full word history & related roots →

triomino · noun

  1. Proto-Indo-European*tréyes
  2. Proto-Indo-European*tri-
  3. Proto-Italic*tri-
  4. Latintri-
  5. Englishtri-
  6. Englishtriomino

From tri- + -omino.

Full word history & related roots →

Rhymes & wordplay

Rhymes with triomino

dominoheptominohexominomonominononominooctomino-ominopentominopolyominotetrominotromino
All rhymes →
Cite this entry
APA

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

MLA

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

Chicago

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

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