Definition of actuate
- The pump is actuated by the windmill.
- a decision actuated by greed
The pump is actuated by the windmill.
a light actuated by a motion detector
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'actuate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 1641See Words from the same year
: to make (a machine or electrical device) move or operate
: to cause someone to do something or to act in a certain way
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