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- DictionaryPo·lar·is/pəˈlerəs/
- 1. a fairly bright star located within one degree of the celestial north pole, in the constellation Ursa Minor. It is a triple star, the bright component of which is a cepheid variable.
- 2. a type of submarine-launched ballistic missile designed to carry nuclear warheads, formerly in service with the US and British navies.
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noun. Po· lar· is pə-ˈler-əs. -ˈlär-, -ˈla-rəs. : north star. Word History. Etymology. New Latin, from polaris polar. First Known Use. 1844, in the meaning defined above. Time Traveler. The first known use of Polaris was in 1844. See more words from the same year. Dictionary Entries Near Polaris. polarimeter. Polaris. polariscope.
Polaris definition: 1. the bright star almost directly above the North Pole 2. the bright star almost directly above…. Learn more.
Polaris definition: the polestar or North Star, a star of the second magnitude situated close to the north pole of the heavens, in the constellation Ursa Minor. See examples of POLARIS used in a sentence.
noun. a binary Cepheid variable, the brightest star in the constellation Ursa Minor; North Star; Pole Star: magnitude, 1.95 to 2.05: used for navigation, since it is the closest star to the north celestial pole and remains nearly stationary throughout the night. Webster’s New World College Dictionary, 4th Edition.
/pəˈlɛrəs/ IPA guide. Other forms: Polarises. Definitions of Polaris. noun. the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it. synonyms: North Star, polar star, pole star, polestar. see more. Cite this entry. Style: MLA. "Polaris."
Polaris definition: the polestar or North Star, a star of the second magnitude situated close to the north pole of the heavens, in the constellation Ursa Minor. See examples of POLARIS used in a sentence.
Jun 10, 2024 · noun. 1. Astronomy. the polestar or North Star, a star of the second magnitude situated close to the north pole of the heavens, in the constellation Ursa Minor: the outermost star in the handle of the Little Dipper. 2. a two-stage U.S. ballistic missile, usually fired from a submerged submarine.
