Definition of semen noun from the Oxford Advanced Learner's Dictionary

 

semen

 noun
noun
BrE BrE//ˈsiːmən//
 
; NAmE NAmE//ˈsiːmən//
 
[uncountable]
 
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the whitish liquid containing sperm that is produced by the sex organs of men and male animals Word Origin late Middle English: from Latin, literally ‘seed’, from serere ‘to sow’.
See the Oxford Advanced American Dictionary entry: semen