- Particles that come from interplanetary space are known as meteoroids.
- Dust from meteoroids may play a role in global warming.
- When Earth passes through a particularly intense meteoroid shower, nothing happens to spacecraft.
Meaning of meteoroid in English
(Definition of meteoroid from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Examples of meteoroid
meteoroid
Even clumps of viable bacteria, if they are introduced as micrometre-sized meteoroids, could survive flash heating in the atmosphere.
From the Cambridge English Corpus
The asteroids, meteoroids and apparently all comets originated in the explosion of planets (or moons).
From the Cambridge English Corpus
The sputtering model considered here may require significant modification for the case of highly fluffy and porous meteoroids.
From the Cambridge English Corpus
Second, the time meteoroids have been travelling in space exposed to cosmic rays is relatively short, typically millions of years.
From the Cambridge English Corpus
This kinetic energy goes into heating the meteoroid and the surrounding atmosphere.
From the Cambridge English Corpus
Classical work on meteoroid ablation suggests that these particles should be annihilated by atmospheric deceleration.
From the Cambridge English Corpus
As the evaporation of molecules from the surface of the meteoroid increases, a vapour cloud starts to form around the meteoroid.
From the Cambridge English Corpus
Heating of the meteoroid by direct impact causes it to lose mass by fragmentation and, as the temperature rises, evaporation and melting of its surface.
From the Cambridge English Corpus
Two important lines of evidence that meteoroids originated in an explosion are these.
From the Cambridge English Corpus
The meteoroids are only heated to their maximum temperatures above their equilibrium temperatures for a short period, of the order of seconds.
From the Cambridge English Corpus
It was found that meteoroids from cometary sources were typically of porous, aggregate compositions with relatively low densities.
From the Cambridge English Corpus
Sputtering provides a mechanism for the meteoroids to lose a substantial fraction of their momentum and energy without experiencing extreme heating.
From the Cambridge English Corpus
This may be the reason why some large meteoroids have been observed at lower heights than expected before total ablation occurs.
From the Cambridge English Corpus
In general, the detailed atmospheric response to the transit of a very hot meteoroid body is a complicated, non-equilibrium problem.
From the Cambridge English Corpus
The majority of the kinetic energy of a meteoroid is dissipated by these processes, which are collectively known as ablation.
From the Cambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
