- 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. [1913 Webster]
The Collaborative International Dictionary of English. 2000.