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Definition of optimum adjective from the Oxford Advanced Learner's Dictionary

optimum

adjective
 
/ˈɒptɪməm/
 
/ˈɑːptɪməm/
[only before noun]
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  1. (also optimal)
    the best possible; producing the best possible results
    • the optimum use of resources
    • the optimum conditions for effective learning
    • The optimum storage temperature is 60℉.
    Extra Examples
    • For optimum performance, always use the recommended tyre pressure.
    • We aim for optimum efficiency in all our operations.
    • What are the optimum conditions for economic growth?
    Oxford Collocations DictionaryOptimum is used with these nouns:
    • balance
    • condition
    • distance
    See full entry
  2. the optimum
    noun [singular] the best possible result, set of conditions, etc. synonym ideal
    • For efficient fuel consumption a speed of 60 mph is about the optimum.
  3. Word Originlate 19th cent.: from Latin, neuter (used as a noun) of optimus ‘best’.
See optimum in the Oxford Advanced American DictionarySee optimum in the Oxford Learner's Dictionary of Academic English

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