The Collaborative International Dictionary of English v.0.48:

Germinative \Ger"mi*na*tive\, a. [Cf. F. germinatif.]
   Pertaining to germination; having power to bud or develop.
   [1913 Webster]

   Germinative spot, Germinative vesicle. (Biol.) Same as
      Germinal spot, Germinal vesicle, under Germinal.
      [1913 Webster]