Lewis & Short

gĕnĕrābĭlis, e, adj. [genero] (postAug.).

  1. I. Act., that has the power of generating, generative, creative: hic est ille generabilis rerum naturae spiritus, Plin. 2, 45, 45, § 116.
  2. II. Pass., that may be generated or produced: opus generabile, Manil. 1, 143.