The Collaborative International Dictionary of English v.0.48:

Spermatic \Sper*mat"ic\, a. [L. spermaticus, Gr. ????: cf. F.
   spermatique. See Sperm.] (Physiol.)
   Of or pertaining to semen; as, the spermatic fluid, the
   spermatic vessels, etc.
   [1913 Webster]

   Spermatic cord (Anat.), the cord which suspends the
      testicle within the scrotum. It is made up of a connective
      tissue sheath inclosing the spermatic duct and
      accompanying vessels and nerves.
      [1913 Webster]

WordNet (r) 3.0 (2006):

spermatic
    adj 1: consisting of or resembling spermatozoa [syn: spermous,
           spermatic]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "spermatic":
   cervical, clitoral, excretory, fecundative, fertilizing, gametic,
   gamic, genital, germinal, lachrymal, lachrymose, lacrimatory,
   lactational, lacteal, lacteous, life-giving, multiparous, ovarian,
   penial, penile, phallic, procreant, procreative, propagative,
   reproductive, rheumy, salivant, salivary, salivous, scrotal,
   secretional, secretive, secretory, seminal, serous, sexual,
   sialagogic, spermatozoal, spermatozoan, spermatozoic, spermic,
   sporal, sporogenous, sporoid, sporous, testicular, uterine,
   vaginal, vulval, vulvar, watering, watery