polaris
Definition
Noun: 1. The North Star; a specific celestial object: Polaris is the common name for the star Alpha Ursae Minoris. It is the brightest star in the constellation Ursa Minor (the Little Bear or Little Dipper) and is currently located very close to the north celestial pole, making it a reliable marker for finding true north.
Usage
- Polaris is used as a proper noun to refer to this specific star.
- It is often discussed in contexts of astronomy, navigation, and mythology.
- Example: "For centuries, sailors have used Polaris to navigate the northern seas."
- Example: "Because of the Earth's axial precession, Polaris will not always be the North Star."
Advanced Usage
- "Pole Star" or "North Star": These are descriptive terms for Polaris, emphasizing its navigational function.
- Example: "Before modern instruments, the Pole Star was an essential guide for travelers."
- In a metaphorical sense, Polaris can symbolize a guiding principle or a fixed point of reference.
- Example: "Her unwavering ethics served as a Polaris for the entire organization."
Variants and Related Words
- Polar (adjective): Relating to or situated near a geographic pole. (e.g., ).
- Polarity (noun): The state of having two opposite or contrasting tendencies. (e.g., ).
Synonyms
- North Star
- Pole Star
- Stella Polaris
- Alpha Ursae Minoris (scientific designation)
Related Phrases and Idioms
- To steer by Polaris: To use a fixed and reliable principle or guide for direction.
- Example: "In times of moral confusion, we must steer by Polaris and adhere to our core values."
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
Khám phá thêm
Các từ liên quan
Từ đồng nghĩa
Từ chứa "polaris"
Từ có nhắc đến "polaris"
