alloy

noun
al·​loy | \ ˈa-ˌlȯi also ə-ˈlȯi How to pronounce alloy (audio) \

Definition of alloy

 (Entry 1 of 2)

1 : the degree of mixture with base metals : fineness
2 : a substance composed of two or more metals or of a metal and a nonmetal intimately united usually by being fused together and dissolving in each other when molten also : the state of union of the components
3a : an admixture that lessens value
b : an impairing alien element
4 : a compound, mixture, or union of different things an ethnic alloy of many peoples
5 archaic : a metal mixed with a more valuable metal to give durability or some other desired quality

alloy

verb
al·​loy | \ ə-ˈlȯi also ˈa-ˌlȯi How to pronounce alloy (audio) \
alloyed; alloying; alloys

Definition of alloy (Entry 2 of 2)

transitive verb

b : to impair or debase by admixture
2 : to reduce the purity of by mixing with a less valuable metal
3 : to mix so as to form an alloy

intransitive verb

: to lend itself to being alloyed iron alloys well

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Examples of alloy in a Sentence

Noun

testing the properties of various alloys a part made of aluminum alloy

Recent Examples on the Web: Noun

The last, available on both the 200 and 250h, comes with suspension modifications and special 18-inch alloy wheels to enhance handling. Frank A. Aukofer, Houston Chronicle, "2019 LEXUS UX 250h: Luxury hybrid comes with all-wheel drive," 14 July 2019 When two foods are combined in a single bite, their chemical essences collide, mushing together to form a completely new alloy. Ali Bouzari, SFChronicle.com, "Housemade: The science behind a feast of flavor pairings at Kismet in Los Angeles," 12 July 2019 To increase their stability, the prototypes were reforged in 1889 out of a platinum-iridium alloy and stowed under lock and key. Robert Rathe, National Geographic, "The kilogram is forever changed. Here's why that matters.," 20 May 2019 The coil is made of ultra-strong copper alloy reinforced with Zylon, a fiber stronger than Kevlar. Quanta Magazine, "The Quantum Secret to Superconductivity," 22 Feb. 2016 Today the Command Module of Apollo 11 is a relic from another age, 11,700 pounds of aluminum alloy, stainless steel and titanium, built in Downey, Calif., by North American Rockwell. David Shribman, latimes.com, "50 years after Apollo 11, the moon’s allure still resonates," 11 July 2019 Commercial reactors have used the same fuel for decades: small pellets of uranium dioxide stacked inside long cylindrical rods made of a zirconium alloy. Mark Fischetti, Scientific American, "Safer Nuclear Reactors Are on the Way," 1 July 2019 That includes lasers, radar, sonar, night vision systems, missile guidance, jet engines and alloys for armored vehicles, according to a report the Pentagon prepared for Trump last year. Laura He, CNN, "Rare earth stocks surge as China seeks greater control of supply," 28 June 2019 In May, Whitcraft, a manufacturer of nickel and titanium alloy parts, announced the acquisition of the Scarborough, Maine, and Tempe, Ariz., operations of LAI International, which makes aircraft engine components. Stephen Singer, courant.com, "When global becomes local: Connecticut manufacturers benefit from worldwide aerospace boom," 11 July 2019

Recent Examples on the Web: Verb

Automakers are making nearly continuous improvements to vehicle engines and structures by alloying their steels with an evolving list of special ingredients such as manganese, titanium, chromium, and nickel. Bengt Halvorson, Car and Driver, "Toyota’s New Electric Motor Cuts Need for Costly (and Overwhelmingly China-Sourced) Rare-Earth Metal," 27 Feb. 2018 The light gray or whitish metal can be alloyed with steel to form materials that are stable at high temperatures. Thomas Biesheuvel, Bloomberg.com, "China Sends One of the West’s Most Critical Materials Soaring," 11 Sep. 2017 Anger and anguish alloyed to reveal a deep, familiar frustration. Bill Oram, Orange County Register, "Clippers one game away from offseason after 96-92 Game 5 loss to Jazz," 25 Apr. 2017 Yttrium and neodymium are alloyed to make the magnets in turbines for windmills. Nelson Ching, National Geographic, "How Acid—and Bacteria—Could Make Recycling Your Phone Greener," 10 June 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alloy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of alloy

Noun

1593, in the meaning defined at sense 1

Verb

1625, in the meaning defined at sense 3

History and Etymology for alloy

Noun

French aloi, from Old French alei, from aleir to combine, from Latin alligare to bind — more at ally

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More Definitions for alloy

alloy

noun

English Language Learners Definition of alloy

: a metal made by melting and mixing two or more metals or a metal and another material together

alloy

noun
al·​loy | \ ˈa-ˌlȯi How to pronounce alloy (audio) , ə-ˈlȯi\

Kids Definition of alloy

: a substance made of two or more metals melted together Brass is an alloy of copper and zinc.