1) Christian chant 1) Indication 
[Gregorian Chant] Semiology (from Greek σημεῖον sēmeion, `a sign, a mark`) is a branch of Gregorian Chant research. Semiology refers specifically to the study of the neumes as found in the earliest fully notated manuscripts of Gregorian Chant, the oldest of which have been dated to the 9th century. The first application of the term...
study of signs and signals
• (n.) The art of using signs in signaling. • Alt. of Semiological • (n.) The science or art of signs. • (n.) The science of the signs or symptoms of disease; symptomatology.
The study of the function of signs and symbols in human communication, both in language and by various nonlinguistic means. Beginning with the notion of the Swiss linguist Ferdinand de Saussure that...
(se″me-ol´ә-je) symptomatology.
Another term for semiotics.
The study of the function of signs and symbols in human communication, both in language and by various nonlinguistic means. Beginning with the notion of the Swiss linguist Ferdinand de Saussure that no word or other sign (signifier) is intrinsically linked with its meaning (signified), it was developed as a scientific discipline, especially by Clau...
a philosophical theory of the functions of signs and symbols