'Semiotics' definitions:

Definition of 'semiotics'

noun

(philosophy) a philosophical theory of the functions of signs and symbols [syn: semiotics, semiology]

From: GCIDE

Semeiotics \Se`mei*ot"ics\ (s[=e]`m[-i]*[o^]t"[i^]ks), or Semiotics \Se`mi*ot"ics\, n.
1. The study of signs as an element of communication; the analysis of systems of communication; -- also called semiology. [PJC]
2. a theory of signs and symbols, including as branches semantics, pragmatics and syntactics. --[RHUD] [PJC]

From: GCIDE

From: GCIDE

Semeiology \Se`mei*ol"o*gy\ (s[=e]`m[-e]*[o^]l"[-o]*j[y^] or s[=e]`m[-i]*[o^]l"[-o]*j[y^]), or Semiology \Se`mi*ol"o*gy\ (s[e^]m`[-e]*[o^]l"[-o]*j[y^]), n. [Gr. shmei^on a mark, a sign + -logy.] The study of signs as an element of communication; the analysis of systems of communication; -- also called semiotics. Specifically: (a) (Med.) The science of the signs or symptoms of disease; symptomatology. (b) The art of using signs in signaling. [1913 Webster] Semeiotic