Definition of optimal
- the optimal use of class time
- the optimal dosage of medication for a patient
- conditions for optimal development
He keeps his engine tuned for optimal performance.
Under optimal conditions, these plants grow quite tall.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'optimal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: best or most effective
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