| 释义 |
comet
—cometary /kom"i ter'ee/, cometic /keuh met"ik/, cometical, adj. —cometlike, adj.
/kom"it/, n. Astron.
a 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.
[1150-1200; ME comete < AF, OF < L cometes, cometa < Gk kométes wearing long hair, equiv. to kome-, var. s. of komân to let one's hair grow (deriv. of kóme hair) + -tes agent suffix] |