dipole

noun
di·pole | \ ˈdī-ˌpōl \

Definition of dipole 

1a : a pair of equal and opposite electric charges or magnetic poles of opposite sign separated especially by a small distance

b : a body or system (such as a molecule) having such charges or poles

2 : a radio antenna consisting of two horizontal rods in line with each other with their ends slightly separated

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Other words from dipole

dipolar \ˈdī-ˌpō-lər, ˌdī-ˈpō- \ adjective

Examples of dipole in a Sentence

Recent Examples on the Web

The dipole array telescope—a mass of wires and poles stretched across an area the size of 57 tennis courts—took Cambridge University students more than two years to build. Lorraine Boissoneault, Smithsonian, "50 Years Ago, a Grad Student’s Discovery Changed the Course of Astrophysics," 1 Mar. 2018 In any event, the end result is likely to be a warm-West cold-East temperature configuration, which scientists describe as the North American dipole pattern. Jason Samenow, Washington Post, "The temperature in Siberia rose 100 degrees. The northern U.S. may pay a frigid price.," 31 Jan. 2018 Regardless what it's called, this dipole pattern – abnormally high temperatures over much of the West along with chilly conditions in the East – has dominated North American weather in four of the past five winters. Jennifer Francis, CBS News, "Is warming in the Arctic behind this year’s crazy winter weather?," 11 Jan. 2018 The resulting warm-West cold-East temperature configuration is referred to by scientists as the North American winter dipole. The Washington Post, NOLA.com, "Eastern U.S. to endure most numbing New Year's Eve cold in memory," 29 Dec. 2017 The dipole is a little antenna that allows both of those to happen at the same time. Chris Lee, Ars Technica, "Combined qubit may bring scaleable quantum computing to silicon," 14 Sep. 2017 The one problem with magnets over electric charges is that magnets come in dipoles. Rhett Allain, WIRED, "NASA Space Games," 5 Nov. 2010

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dipole.' 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 dipole

1912, in the meaning defined at sense 1a

History and Etymology for dipole

International Scientific Vocabulary

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Time Traveler for dipole

The first known use of dipole was in 1912

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More Definitions for dipole

dipole

noun
di·pole | \ ˈdī-ˌpōl \

Medical Definition of dipole 

1 : a pair of equal and opposite electric charges or magnetic poles of opposite sign separated by a small distance

2 : a body or system (as a molecule) having such charges

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Britannica.com: Encyclopedia article about dipole

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