Terminology is the study of terms and their use. Terms are word

Word

In language, a word is the smallest free form that may be uttered in isolation with semantic or pragmatic content . This contrasts with a morpheme, which is the smallest unit of meaning but will not necessarily stand on its own...

s and compound words that in specific contexts are given specific meanings, meanings that may deviate from the meaning the same words have in other contexts and in everyday language. The discipline Terminology studies among other things how such terms of art come to be and their interrelationships within a culture. Terminology differs from lexicography

Lexicography

Lexicography is divided into two related disciplines:*Practical lexicography is the art or craft of compiling, writing and editing dictionaries....

 in studing concepts, conceptual systems, and their labels (terms), whereas lexicography study words and their meanings.

Terminology thus denotes a discipline which systematically studies the labelling or designating of concept

Concept

The word concept is used in ordinary language as well as in almost all academic disciplines. Particularly in philosophy, psychology and cognitive sciences the term is much used and much discussed. WordNet defines concept: "conception, construct ". However, the meaning of the term concept is much...

s particular to one or more subject fields or domains of human activity, through research and analysis of terms in context, for the purpose of documenting and promoting consistent usage.