Silastic
[ si-las-tik ]
/ sɪˈlæs tɪk /
Trademark.
a brand name for any of a group of substances containing polymeric silicones, having the properties of rubber but more capable of withstanding extremely high and low temperatures and other causes of deterioration, used in jet-plane engines, medical prosthetic devices, gaskets, electrical insulation, etc.
British Dictionary definitions for silastic
Silastic
/ (sɪˈlæstɪk) /
noun
trademark
a flexible inert silicone rubber, used esp in prosthetic medicine