单词	meteor
释义	meteorme‧te‧or /ˈmiːtiə $ -ər/ noun [countable] Word Origin WORD ORIGINmeteor Origin: 1500-1600 French météore, from Medieval Latin meteorum, from Greek meteoron ‘something in the sky’, from meteoros ‘high in air’ Examples EXAMPLES FROM THE CORPUS From time to time Earth suffers bombardment from meteors and comets, and meteoritic impact has been a major planet-shaper and climate-modeller. Peak rates are typically 50 to more than 100 meteors per hour. The meteors are debris from the comet Swift-Tuttle, which last appeared in 1992. The comets, meteors and other bodies were regarded as waste material. The density of the atmosphere traversed by the meteor increases very rapidly as it nears the ground. The orbits of many other meteor swarms have been determined. The special includes vivid illustrations of the impact meteors have had in the past and what could happen in the future. These few lucky observers had witnessed the most spectacular meteor shower in recorded history, surpassing even the 1833 Leonids. word sets WORD SETS► Astronomy asteroid, nounastro-, prefixastronaut, nounastronomical, adjectiveastronomy, nounastrophysics, nounAU, aurora borealis, nounBig Bang, the, nounblack hole, nouncelestial, adjectivecomet, nounconstellation, nouncorona, nouncosmic, adjectivecosmic ray, nouncosmology, nouncosmonaut, noundead, adjectiveearth, nouneclipse, nouneclipse, verbecliptic, nounequinox, nounescape velocity, nounextraterrestrial, adjectivegalactic, adjectivegalaxy, noungeostationary orbit, nounHubble Space Telescope, the, infinity, nounintergalactic, adjectiveinterplanetary, adjectiveinterstellar, adjectiveJupiter, nounlaunch, verblaunch, nounlight year, nounLittle Bear, lunar, adjectivelunar month, nounmagnitude, nounMars, nounMercury, nounmeteor, nounmeteoric, adjectivemeteorite, nounMilky Way, the, month, nounmoon, nounmorning star, nounNASA, nounnebula, nounNeptune, nounnew moon, nounnova, nounobservatory, nounorbit, verborbit, nounorbiter, nounouter space, nounphase, nounplanet, nounplanetarium, nounplasma, nounPluto, nounquadrant, nounquarter, nounquasar, nounradio telescope, nounring, nounrocket, nounsatellite, nounSaturn, nounsea, nounshooting star, nounsolar, adjectivesolar system, nounspace, nounspace capsule, nounspacecraft, nounspace probe, nounspaceship, nounspace shuttle, nounspace station, nounstar, nounstargazer, nounsteady state theory, nounstellar, adjectivesun, nounsunspot, nounsupernova, nountelescope, nountelescopic, adjectiveterrestrial, adjectiveUranus, nounVenus, nounwane, verbwax, verbwhite dwarf, nounworld, nounzenith, noun Collocations COLLOCATIONS FROM THE ENTRY► meteor shower  a meteor shower (=a lot of meteors that fall down towards the Earth at the same time) COLLOCATIONS FROM THE CORPUSNOUN► shower · On some nights one can see so many of these popularly-called shooting stars that we speak of a star or meteor shower.· These few lucky observers had witnessed the most spectacular meteor shower in recorded history, surpassing even the 1833 Leonids.· You might have thought that no meteor shower, no space dist had ever touched that brilliance.· It is startling but true that no meteorite fall has ever been associated with a meteor shower.· Bundle up for the annual Geminid meteor shower, peaking around midnight Dec. 13.· No cometary meteor shower has ever produced a meteorite fall.· Interestingly, three regular meteor showers have orbits connected with three asteroids whose orbits bring them very close to Earth.· The random background meteors that do not belong to discrete meteor showers are called sporadic meteors. a piece of rock or metal that travels through space, and makes a bright line in the night sky when it falls down towards the Earth:  Astronomers track large meteors using radar. a meteor shower (=a lot of meteors that fall down towards the Earth at the same time)
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