Definition of simultaneous
- simultaneous equations
The two gunshots were simultaneous.
a simultaneous release of the movie and its soundtrack on CD
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'simultaneous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: happening at the same time
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of yeast or being unsettled or frivolous
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