sem·i·nal /ˈsɛmənḷ/
  (a.)精液的,種子的,生殖的
  sem·i·nal /ˈsɛmənḷ/ 形容詞
  精液的,種子的,輸精管,初期的,原始的,種子的,精液的
  Sem·i·nal a.
  1. Pertaining to, containing, or consisting of, seed or semen; as, the seminal fluid.
  2. Contained in seed.
  3. Hence: Holding the first place in a series of developed results or consequents; serving as a source, or first principle; giving rise to related ideas or results; germinal; radical; primary; original; as, seminal principles of generation; seminal virtue; a seminal discovery.
     The idea of God is, beyond all question or comparison, the one great seminal principle.   --Hare.
  Seminal leaf Bot., a seed leaf, or cotyleden.
  Seminal receptacle. Zool. Same as Spermatheca.
  Sem·i·nal n. A seed. [Obs.]
  ◄ ►
  seminal
       adj 1: pertaining to or containing or consisting of semen; "seminal
              fluid"
       2: containing seeds of later development; "seminal ideas of one
          discipline can influence the growth of another" [syn: germinal,
           originative]