tinfoil
noun
tin·foil
ˈtin-ˌfȯi(-ə)l 
: a paper-thin metal sheeting usually of aluminum or tin-lead alloy
Examples of tinfoil in a Sentence
Wrap the leftover food in tinfoil.
Recent Examples on the Web
There’s a half-can of chipotles in adobo beneath a tinfoil hat in the back of the fridge.
—
Sam Sifton, New York Times, 11 Apr. 2025
Edison’s machine recorded onto a thin piece of tinfoil wrapped around a cylinder.
—IEEE Spectrum, 30 Apr. 2018
Responding officers found the tinfoil of methamphetamine that Morales had seized earlier in a pants pocket of his uniform.
—Karen Garcia, Los Angeles Times, 4 Mar. 2025
Stephens also took two recordings—an Edison tinfoil record and a Volta lab graphophone disc from 1881—to Lawrence Berkeley for scanning because the system there had a larger stage.
—IEEE Spectrum, 30 Apr. 2018
See All Example Sentences for tinfoil
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Sam Sifton, New York Times, 11 Apr. 2025
Edison’s machine recorded onto a thin piece of tinfoil wrapped around a cylinder.
—IEEE Spectrum, 30 Apr. 2018
Responding officers found the tinfoil of methamphetamine that Morales had seized earlier in a pants pocket of his uniform.
—Karen Garcia, Los Angeles Times, 4 Mar. 2025
Stephens also took two recordings—an Edison tinfoil record and a Volta lab graphophone disc from 1881—to Lawrence Berkeley for scanning because the system there had a larger stage.
—IEEE Spectrum, 30 Apr. 2018
See All Example Sentences for tinfoil
Cite this Entry
“Tinfoil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tinfoil. Accessed 30 Apr. 2025.
Copy CitationKids Definition
tinfoil
noun
tin·foil
ˈtin-ˌfȯil
: a thin metal sheeting usually of aluminum or an alloy of tin and lead
Love words? Need even more definitions?
Merriam-Webster unabridged
Share