trussing noun 3adjective 1forms 1 noun3 •The timbers, etc., that form a truss.Beds (Trussing) were beds which packed into chests , for travelling ; and , considering the frequent removals , these must have been the most convenient kind . — 1849 •The art of stiffening or bracing a set of timbers, etc., by putting in struts, ties, etc., until it has something of the character of a truss. •(no longer used) The act of a hawk or other bird of prey in seizing its quarry and soaring into the air with it. adjective1 •In the act of seizing (something).Sable, a falcon or, his wings expanded, trussing a mallard argent, on a chief of the latter, a cross botoné[…] — 1845 formstrussings