surgical UK /ˈsɜːd͡ʒɪkəl/US /ˈsɝd͡ʒɪkəl/ adjective3 •Of, relating to, used in, or resulting from surgery.Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads. — 2013 •(figurative) Precise or very accurate.The building was destroyed with a surgical air-strike. •(figurative) Excruciatingly or wearyingly drawn-out. formsmore surgical · most surgical