star-quake

star·quake

[stahr-kweyk]
noun Astronomy.
a rapid change in the mass distribution or shape of a pulsar, resulting in a fluctuation of the pulsar's pulse rate or radiation intensity.

Origin:
1965–70; star + (earth)quake

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Star-quake is always a great word to know.
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a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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