tromino

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tromino

[′träm·ə·nō]
(mathematics)
One of the two plane figures that can be formed by joining three unit squares along their sides.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(Hint: Consider edge-numbered variants of Triominoes).
She enjoyed cruises, playing shuffleboard, dominoes, and triominoes.
When we couldn't walk or sightsee, we huddled round the roaring log fire with a glass of wine playing cards and a strange game called triominoes, the finer points of which eluded me, with the result that I finished up several 20 pences down on the week.
The traditional freehouse (probably purposely built as the "tap" for Alnwick Brewery) features a selection of games ( dominoes, darts, triominoes, Scrabble ( and a choice of books that includes The Broons.