precast UK /pɹiːˈkɑːst/US /pɹiˈkæst/adjective 1noun 1verb 1forms 2 adjective1 •Cast previously in another location.The bridge used precast concrete girders. noun1 •Structural members made of concrete, ready for installation. verb1 •To cast in a location other than where to be installed. formsprecasting · precasts