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  1. EFFECTIVENESS Definition & Meaning - Merriam-Webster

    The meaning of EFFECTIVENESS is the quality or state of being effective. How to use effectiveness in a sentence.

  2. EFFECTIVENESS definition and meaning | Collins English Dictionary

    EFFECTIVENESS definition: productive of or capable of producing a result | Meaning, pronunciation, translations and examples

  3. Effectiveness - Wikipedia

    In medicine, effectiveness relates to how well a treatment works in practice, especially as shown in pragmatic clinical trials, as opposed to efficacy, which measures how well it works in …

  4. EFFECTIVENESS | English meaning - Cambridge Dictionary

    EFFECTIVENESS definition: 1. the degree to which something is effective: 2. how well a particular treatment or drug works…. Learn more.

  5. EFFECTIVENESS Definition & Meaning | Dictionary.com

    EFFECTIVENESS definition: the quality of producing an intended or desired result. See examples of effectiveness used in a sentence.

  6. effectiveness noun - Definition, pictures, pronunciation and usage ...

    Definition of effectiveness noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  7. Effectiveness - definition of effectiveness by The Free Dictionary

    Define effectiveness. effectiveness synonyms, effectiveness pronunciation, effectiveness translation, English dictionary definition of effectiveness. adj. 1. a. Having an intended or …

  8. effectiveness, n. meanings, etymology and more | Oxford English …

    effectiveness, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

  9. Effectiveness - Definition, Meaning & Synonyms | Vocabulary.com

    /ɪˈfɛkɾɪvnɪs/ /əˈfɛktɪvnɪs/ IPA guide Definitions of effectiveness noun power to be effective; the quality of being able to bring about an effect synonyms: effectivity, effectuality, effectualness

  10. effectiveness - Wiktionary, the free dictionary

    Nov 1, 2025 · Noun [edit] effectiveness (countable and uncountable, plural effectivenesses) The property of being effective, of achieving results.