The Collaborative International Dictionary
Semeiological
Semeiological \Se`mei*o*log"ic*al\, or Semiologioal \Se`mi*o*log"io*al\, a. Of or pertaining to the science of signs, or the systematic use of signs; as, a semeiological classification of the signs or symptoms of disease; a semeiological arrangement of signs used as signals.
Wiktionary
semeiological
a. (alternative form of semiological English)