pole star

短语

极星

发音

UK /ˈpəʊl stɑː/
其它
US /ˈpoʊl ˌstɑɹ/

词形变化

pole stars 复数

别名

polestar

释义与例句

n.
  1. 1.

    The star visible to the naked eye which was in the past, is now, or will be in the future nearest a celestial pole of a planet.

    极星

    天文

    Polaris is currently the pole star of planet Earth.

  2. 2.

    A person, principle, or thing which acts as a guide; a guiding light; also, something which attracts much attention; a centre of attention.

    比喻

词源

From pole (“either of the two points on the Earth’s surface around which it rotates; similar points on any other rotating object”) + star, possibly a calque of Latin stēllam polārem (“the Pole Star”).

来源：wiktionary