Foil (metal)


Foil (metal)
A roll of Aluminum Foil

A foil is a very thin sheet of metal, usually made by hammering or rolling a piece of metal. Foils are most easily made with malleable metals, such as aluminium, copper, tin, and gold. Foils usually bend under their own weight and can be torn easily. The more malleable a metal, the thinner foil can be made with it. For example, aluminium foil is usually about 1/1000 inch (0.03 mm), whereas gold (more malleable than aluminium) can be made into foil only a few atoms thick. Such extremely thin foil is called leaf. Leaf tears very easily and must be picked up with special brushes.

Foil is commonly used in household applications. It is also useful in survival situations.

See also



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Look at other dictionaries:

  • metal — Synonyms and related words: Dutch foil, achievement, alerion, aluminum, aluminum foil, americium, animal charge, annulet, argent, armorial bearings, armory, arms, asphalt, azure, bandeau, bar, bar sinister, barium, baton, bearings, bend, bend… …   Moby Thesaurus

  • foil — An extremely thin pliable sheet of metal. * * * foil fȯil n very thin sheet metal (as of gold or platinum) used esp. in filling teeth * * * (foil) metal in the form of an extremely thin, pliable sheet …   Medical dictionary

  • Foil — may refer to:Materials: * Metal leaf, a thin sheet of metal * Aluminium foil, a type of wrapping for food * Plastic foil, a thin layer of plastics Fluid Mechanics: * Foil (fluid mechanics), a type of wing or blade used to provide lift * Foil… …   Wikipedia

  • foil — foil1 [foil] vt. [ME foilen < OFr fuler, to trample on, subdue: see FULL2] 1. to keep from being successful; thwart; frustrate 2. Hunting to make (a scent, trail, etc.) confused, as by recrossing, in order to balk the pursuers n. 1. Archaic… …   English World dictionary

  • Foil — Foil, n. [OE. foil leaf, OF. foil, fuil, fueil, foille, fueille, F. feuille, fr. L. folium, pl. folia; akin to Gr. ?, and perh. to E. blade. Cf. {Foliage}, {Folio}.] 1. A leaf or very thin sheet of metal; as, brass foil; tin foil; gold foil.… …   The Collaborative International Dictionary of English

  • Foil stone — Foil Foil, n. [OE. foil leaf, OF. foil, fuil, fueil, foille, fueille, F. feuille, fr. L. folium, pl. folia; akin to Gr. ?, and perh. to E. blade. Cf. {Foliage}, {Folio}.] 1. A leaf or very thin sheet of metal; as, brass foil; tin foil; gold foil …   The Collaborative International Dictionary of English

  • Metal leaf — processing 22k gold leaf applied with an ox hair brush during the process …   Wikipedia

  • foil — Ⅰ. foil [1] ► VERB ▪ prevent the success of. ORIGIN originally in the sense «trample down»: perhaps from Old French fouler to full cloth, trample , from Latin fullo fuller . Ⅱ. foil [2] ► NOUN 1) metal h …   English terms dictionary

  • metal — [n] lustrous chemical element alloy, casting, deposit, foil, hardware, ingot, leaf, load, mail, mineral, native rock, ore, plate, solder, vein; concept 476 …   New thesaurus

  • foil — foil1 foilable, adj. /foyl/, v.t. 1. to prevent the success of; frustrate; balk: Loyal troops foiled his attempt to overthrow the government. 2. to keep (a person) from succeeding in an enterprise, plan, etc. n. 3. Archaic. a defeat; check;… …   Universalium


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