plaster cast
US /ˈplæs.tɚ ˌkæst/
UK /ˈplæs.tɚ ˌkæst/

1.
gesso
a bandage made stiff with plaster of Paris, molded to the shape of a limb or other part of the body to support and protect it while a broken bone heals
:
•
After breaking his arm, he had to wear a plaster cast for six weeks.
Dopo essersi rotto il braccio, ha dovuto portare un gesso per sei settimane.
•
The doctor carefully applied the plaster cast to her leg.
Il medico ha applicato con cura il gesso alla sua gamba.