English

Definition of trepan verb from the Oxford Advanced Learner's Dictionary

 

trepan

 verb
verb
BrE BrE//trɪˈpæn//
 
; NAmE NAmE//trɪˈpæn//
 
Verb Forms present simple I / you / we / they trepan
BrE BrE//trɪˈpæn//
 
; NAmE NAmE//trɪˈpæn//
 
he / she / it trepans
BrE BrE//trɪˈpænz//
 
; NAmE NAmE//trɪˈpænz//
 
past simple trepanned
BrE BrE//trɪˈpænd//
 
; NAmE NAmE//trɪˈpænd//
 
past participle trepanned
BrE BrE//trɪˈpænd//
 
; NAmE NAmE//trɪˈpænd//
 
-ing form trepanning
BrE BrE//trɪˈpænɪŋ//
 
; NAmE NAmE//trɪˈpænɪŋ//
 
 
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trepan somebody/something (especially in the past) to make a hole in somebody’s skull with a special instrument, for medical reasons Word Origin late Middle English: the noun via medieval Latin from Greek trupanon, from trupan ‘to bore’, from trupē ‘hole’; the verb from Old French trepaner.
See the Oxford Advanced American Dictionary entry: trepan