Tinfoil is thin metal foil made from tin and other metals.
You might have seen tinfoil used in cooking to wrap food, especially fish or leftovers. People also use it for storing food in the fridge or freezer. It's easy to shape into small containers or wraps because it's so thin and pliable. Sometimes, people joke about wrapping their heads in tinfoil to supposedly block out thoughts or distractions, but that's not a common or recommended practice!
A thin, pliable sheet of tin or an alloy of tin and lead, used as a protective wrapping.
To cover in tinfoil.
