asteroid

A small rocky body orbiting the Sun

TOEFL

Example

An asteroid impact is thought to have caused the Cretaceous mass extinction.

Synonyms

meteoritespace rockminor planet

Found in

Related Words

accelerationthe rate of change of velocity; the second derivative of positionSAT · TOEFLacida chemical substance with pH less than 7; sharp or biting in tasteSAT · TOEFLadaptationThe process of changing to suit different conditions; an altered form of somethi…TOEFL · IELTSaerobicRelating to or requiring the presence of oxygenTOEFLaerosolTiny particles suspended in a gasTOEFLalgaeSimple non-flowering plants, typically found in waterTOEFLalleleA variant of a gene that produces a different traitTOEFLalloya mixture of two or more metals; to mix metalsSAT · TOEFL

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