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

attenuated

adjective

/əˈtenjueɪtɪd/

/əˈtenjueɪtɪd/

(formal)

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made weaker or less effective
- an attenuated form of the virus
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(of a person) very thin

See attenuated in the Oxford Advanced American Dictionary

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attenuated

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adverb

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B1

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