tri·que·trum

(trī-kwē′trəm, -kwĕt′rəm)

n. pl. tri·que·tra (-kwē′trə, -kwĕt′rə)

A bone of the wrist in the proximal row of carpal bones.

[Latin, neuter of triquetrus, three-cornered; see triquetrous.]

tri·que′tral (-trəl) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

triquetral - a wrist bone that articulates with the pisiform and hamate and lunate bones

cuneiform bone, os triquetrum, pyramidal bone, triquetral bone

carpal, carpal bone, wrist bone - any of the eight small bones of the wrist of primates

Mentioned in

References in periodicals archive

Glochidial release and reproduction of the snuffbox mussel, Epioblasma triquetral timing in southern Michigan, [abstract].

Documentation of Freshwater Mussels (Unionidae) in the Diet of Round Gobies (Neogobius melanostomus) within the French Creek Watershed, Pennsylvania

(14) reported a FCUM that possessed only a humeral head; another muscle belly originating from medial epicondyle lying between flexor digitorum superficialis and FCUM and was attached to triquetral, hamate bones, and flexor retinaculum.

A Variation of Flexor Carpi Ulnaris Muscle: A Case Report

Note the comminuted scaphoid facet, subtle triquetral fracture (AP) as well as the obvious perilunate dislocation (lateral).

Case Report of an Acute Complex Perilunate Fracture Dislocation Treated with a Three-Corner Fusion

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