From Longman Dictionary of Contemporary Englishreflexesreflexes[plural]REACT a) the natural ability to react quickly and well to sudden situationshave good/quick/slow reflexes A tennis player needs to have very quick reflexes. b) HBHa sudden uncontrolled movement that your muscles make as a natural reaction to a physical effect Doctor Mulholland tested Jennifer’s reflexes (=especially by hitting her knee with a special rubber hammer). → reflex
Examples from the Corpus
reflexes• Computer games require quick reflexes. 