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English definition of “compos mentis”

compos mentis

adjective [after verb]     /ˌkɒm.pɒsˈmen.tɪs/ US  /ˌkɑːm.pəsˈmen.t̬əs/ humorous
able to think clearly and be in control of and responsible for your actions : She was very old but still compos mentis.Healthiness of mind
(Definition of compos mentis adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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