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Pronunciation varies by accent · noun
(astronomy) A relatively small (sand- to boulder-sized) fragment of debris in a star system that produces a meteor when it hits the atmosphere.
Use meteoroid when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Meteoroid means (astronomy) A relatively small (sand- to boulder-sized) fragment of debris in a star system that produces a meteor when it hits the atmosphere.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use meteoroid where its definition matches the intended context.
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