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English definition of “acute”

acute

adjective (ANGLE)    /əˈkjuːt/
describes an angle that is less than 90 degrees → Compare obtuse, reflexDescribing angles, lines and orientations acuteness     /-nəs/ noun [U] PerceptiveUsing the eyesIntelligence
(Definition of acute adjective (ANGLE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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