Assertion: foil | /r/HasProperty | solid metal
Facets:
value: with a shape
type: OTHER
Source sentences:
text: Foil, solid metal that has been reduced to a leaflike thinness by mechanical beating or rolling.
text: A foil is a solid object with a shape such that when placed in a moving fluid at a suitable angle of attack the lift (force generated perpendicular to the fluid flow) is substantially larger than the drag (force generated parallel to the fluid flow).