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

 

piscine

 adjective
adjective
BrE BrE//ˈpɪsaɪn//
 
; NAmE NAmE//ˈpɪsaɪn//
 
; BrE BrE//ˈpaɪsiːn//
 
; NAmE NAmE//ˈpaɪsiːn//
 
(formal or specialist)
 
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of or related to fish Word Origin late 18th cent.: from Latin piscis ‘fish’ + -ine.
See the Oxford Advanced American Dictionary entry: piscine