| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024com•et /ˈkɑmɪt/USA pronunciation n. [countable]- Astronomya body in space made up of a bright, central solid mass and a tail of dust and gas and that orbits the sun:Halley's comet.
com•et•ar•y /ˈkɑmɪˌtɛri/USA pronunciation adj. WordReference Random House Unabridged Dictionary of American English © 2024com•et (kom′it),USA pronunciation n. [Astron.]- Astronomya celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and gas that may form a tail that streams away from the sun.
- Greek komé̄tēs wearing long hair, equivalent. to komē-, variant stem of komân to let one's hair grow (derivative of kómē hair) + -tēs agent suffix
- Latin comētēs, comēta
- Anglo-French, Old French
- 1150–1200; Middle English comete
Collins Concise English Dictionary © HarperCollins Publishers:: comet /ˈkɒmɪt/ n - a celestial body that travels around the sun, usually in a highly elliptical orbit: thought to consist of a solid frozen nucleus part of which vaporizes on approaching the sun to form a gaseous luminous coma and a long luminous tail
Etymology: 13th Century: from Old French comète, from Latin comēta, from Greek komētēs long-haired, from komē hairˈcometary, cometic /kɒˈmɛtɪk/ adj |