The Collaborative International Dictionary of English v.0.48:

Semeiography \Se`mei*og"ra*phy\ (s[=e]`m[-i]*[o^]g"r[.a]*f[y^]),
   or Semiography \Se`mi*og"ra*phy\
   (s[=e]`m[i^]*[o^]g"r[.a]*f[y^]), n. [Gr. shmei^on sign +
   -graphy.] (Med.)
   A description of the signs of disease.
   [1913 Webster] Semeiological