| 单词 | micrometeorite |
| 释义 | micrometeorite (once / 268621 pages) n WORD FAMILY micrometeorite: micrometeorites+/meteorite: meteorites, meteoritic, micrometeorite/meteoritic: meteoritical, meteoritically USAGE EXAMPLESAs a consequence, when asteroids collide, some of it is liberated—and a small fraction of that material eventually falls to Earth as micrometeorites. Economist(Dec 10, 2016) Also, a ring-shaped galaxy shows off its stunning halo, and scientists marvel at the oldest micrometeorites ever found. National Geographic(May 13, 2016) Their prey, however, were not bubbles but micrometeorites. Economist(May 12, 2016) n a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere Syn|Hyper micrometeor, micrometeoroid meteorite stony or metallic object that is the remains of a meteoroid that has reached the earth's surface |
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