impactor

noun im·pac·tor \ im-ˈpak-tər \
variants: or impacter
|Updated on: 21 Jun 2018

Definition of impactor

1 : a machine (such as a steam or air hammer or a pile driver) or part that operates by striking blows
2 : meteorite

Recent Examples of impactor from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'impactor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of impactor

1872

in the meaning defined at sense 1

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