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

 

erectile

 adjective
adjective
BrE BrE//ɪˈrektaɪl//
 
; NAmE NAmE//ɪˈrektaɪl//
 
, also NAmE//ɪˈrektl//
 
(biology)
 
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(of a part of the body) able to become stiff and stand up erectile tissue Word Origin mid 19th cent.: from French érectile, from Latin erigere ‘set up’, from e- (variant of ex-) ‘out’ + regere ‘to direct’.
See the Oxford Advanced American Dictionary entry: erectile