Definition of per se adverb from the Oxford Advanced Learner's Dictionary

 

per se

 adverb
adverb
BrE BrE//ˌpɜː ˈseɪ//
 
; NAmE NAmE//ˌpɜːr ˈseɪ//
 
(from Latin)
 
jump to other results
used meaning ‘by itself’ to show that you are referring to something on its own, rather than in connection with other things The drug is not harmful per se, but is dangerous when taken with alcohol. Word OriginLatin.
See the Oxford Advanced American Dictionary entry: per se