seminal /ˈsɛmənl̟/ adjective Learner's definition of SEMINAL
1
formal : having a strong influence on ideas, works, events, etc., that come later : very important and influential有影响力的;重大的 2
always used before a noun,
medical : of or containing semen精液的;含精液的 -
seminal fluid精液
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the seminal duct输精管