semiology Meaning, Definition & Usage

  1. noun (philosophy) a philosophical theory of the functions of signs and symbols
    semiotics.

WordNet

Se`mei*ol"o*gy, Se`mi*ol"o*gy noun (Also<
  • Semeiology
  • Semiology
)
Etymology
Gr. shmei^on a mark, a sign + -logy.
Definitions
  1. The science or art of signs. Specifically: (a) (Med.) The science of the signs or symptoms of disease; symptomatology. (b) The art of using signs in signaling.

Webster 1913