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词汇 Polaris
释义

Definition of Polaris in English:

Polaris

proper nounpəˈlɑːrɪspəˈlɛrəs

  • 1Astronomy
    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.

    Also called North Star, Pole Star

  • 2A type of submarine-launched ballistic missile designed to carry nuclear warheads, formerly in service with the US and British navies.

    北极星导弹（曾在美国和英国海军中被应用的一种用于携带核弹头的潜射弹道导弹）

Origin

Mid 19th century: from medieval Latin polaris 'heavenly', from Latin polus 'end of an axis'.

Definition of Polaris in US English:

Polaris

proper nounpəˈlerəspəˈlɛrəs

  • 1Astronomy
    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.

    Also called North Star, Pole Star

  • 2A type of submarine-launched ballistic missile designed to carry nuclear warheads, formerly in service with the US and British navies.

    北极星导弹（曾在美国和英国海军中被应用的一种用于携带核弹头的潜射弹道导弹）

Origin

Mid 19th century: from medieval Latin polaris ‘heavenly’, from Latin polus ‘end of an axis’.
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