triquetrous

American  

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

adjective

1. three-sided; triangular.

2. having a triangular cross section.

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triquetrous British  

/ -ˈkwɛt-, traɪˈkwiːtrəs /

adjective

1. triangular, esp in cross section

   a triquetrous stem

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Other Word Forms

• subtriquetrous adjective

Etymology

Origin of triquetrous

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

Example Sentences

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

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

Style mostly 3-parted and achene triangular or triquetrous.

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 inflorescence is a compound spike varying in length from 4 to 10 inches, erect; the main rachis is triquetrous, dorsally rounded, glabrous and very thinly scaberulous at the edges.

From A Handbook of Some South Indian Grasses by Rangachari, K.

The spikelets are plano-convex, orbicular to oblong, obtuse, secund, 2-ranked on the flattened or triquetrous rachis of the spike-like branches of a raceme, one-flowered and falling off entire from the very short or obscure pedicels.

From A Handbook of Some South Indian Grasses by Rangachari, K.