tinfoil
(tin′fo̵il′)
noun
- tin or an alloy of tin and lead in a very thin sheet or sheets, used in insulation, etc.
- aluminum in a very thin sheet, used for wrapping food, etc.
See tinfoil in American Heritage Dictionary 4
also tin foil
noun A thin, pliable sheet of aluminum or of tin-lead alloy, used as a protective wrapping.
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