Main Entry: flex·ure Pronunciation: 'flek-sh&r Function: noun 1: the quality or state of being flexed :FLEXION 2: an anatomical turn, bend, or fold; especially: one of three sharp bends of theanterior part of the primary axis of the vertebrate embryo that serve to establish the relationship of the parts of the developing brain —see CEPHALIC FLEXURE, CERVICAL FLEXURE, HEPATIC FLEXURE, PONTINE FLEXURE; SIGMOID FLEXURE, SPLENIC FLEXURE —flex·ur·al/-sh&r-&l/adjective