missuture noun 1verb 1forms 3 noun1 •An instance of missuturingA rare but serious complication is residual IVC- left atrial shunt due to missuture of atrial septal flap to the Eustachian valve which was mistaken as lower edge of the defect [7–9]. — 2015 verb1 •To suture improperly.It is easy to missuture curved gaping wounds so that one side is sheared and buckled relative to the other. — 1960 formsmissutured · missuturing · missutures