Pronunciation: (sē"mē-ot'iks, sem"ē-, sē"mī-), [key]
—n. (used with a sing. v.)
1. the study of signs and symbols as elements of communicative behavior; the analysis of systems of communication, as language, gestures, or clothing.
2. a general theory of signs and symbolism, usually divided into the branches of pragmatics, semantics, and syntactics.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.