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triquetrous

[ trahy-kwee-truhs, -kwe- ]

adjective

  1. three-sided; triangular.
  2. having a triangular cross section.


triquetrous

/ -ˈkwɛt-; traɪˈkwiːtrəs /

adjective

  1. triangular, esp in cross section

    a triquetrous stem

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Other Words From

  • subtri·quetrous adjective
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Word History and Origins

Origin of triquetrous1

1650–60; < Latin triquetrus triangular, equivalent to tri- tri- + -quetrus cornered
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Word History and Origins

Origin of triquetrous1

C17: from Latin triquetrus having three corners
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Example Sentences

Capsule membranous, elliptical, acutish at each end or shortly stipitate, triquetrous and acutely winged, very tardily dehiscent.

Style mostly 3-parted and achene triangular or triquetrous.

Decumbent, pinnately branching, the short fertile branch lateral; leaves subvertical, suborbicular, obtuse, entire; lower lobe obovate-cucullate or galeate, subappressed; underleaves cordate or rounded, sinuate-subdentate, slightly bifid; perianth oblong, triquetrous, convex dorsally, strongly keeled ventrally.—On rocks and trees, N. Y. to Ohio, and southward; rather common.

Slender, rarely forked, without runners, greenish, reddish, or often purple; leaves imbricate, ascending, obovate, concave, semicordate at base, lunately bifid below the middle, the lobes incurved or hooked; cells small, quadrate; monœcious or diœcious; involucral leaves complicate, the lobes subovate, spinulose-denticulate; perianth large, rose-purple, triquetrous, the wide mouth ciliate; calyptra thin; capsule oblong-globose.

Procumbent, widely branching or subpinnate; leaves orbicular, subimbricate; lower lobe very small, as broad as long, close to the stem; underleaves rather large, flat, rounded, slightly bifid; monœcious; perianth oblong-oval or subobovate, triquetrous, dorsally sulcate, acutely keeled ventrally; antheridial spikes globose.—Shaded rocks, N. Y. and N. J. to E. Tenn.

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