triquetrous

American  

[trahy-kwee-truhs, -kwe-] / traɪˈkwi trəs, -ˈkwɛ- /

adjective

1. three-sided; triangular.

2. having a triangular cross section.

---

triquetrous British  

/ -ˈkwɛt-, traɪˈkwiːtrəs /

adjective

1. triangular, esp in cross section

   a triquetrous stem

---

Other Word Forms

• subtriquetrous adjective

Etymology

Origin of triquetrous

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

Example Sentences

P. subumb. glabrous; g. triquetrous; s. wavy, pure white, apex with black points.

From European Fungus Flora: Agaricaceae by Massee, George

It is a native of Albania, and belongs to that section of its extensive genus having triquetrous and obtuse leaves, or blunt three-sided foliage, as formed by a well developed keel.

From Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. by Wood, John

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

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

The pollen-grains differ in a marked manner in the two forms; "those of the long-styled plants are sharply triquetrous, smaller, and more transparent than those of the short-styled, which are of a bluntly triangular form."

From The Different Forms of Flowers on Plants of the Same Species by Darwin, Charles

P. campan. umb. thin, striate; g. triquetrous, thin, pale then ochre; s. slender, fistulose, fibrillose, slightly striate, cottony at the base; ring membranous, narrow, saffron-ochre; sp. 8-9 long. mycenoides, Fr.

From European Fungus Flora: Agaricaceae by Massee, George