triquetral tri·quet·ral uncommon noun 1. a wrist bone that articulates with the pisiform and hamate and lunate bones Synonymstriquetral boneos triquetrumcuneiform bonepyramidal bone Related words Word family triquetral bone Broader terms carpal bone WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
