nomenclature

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A system of names used in an art or science: the nomenclature of mineralogy.
2. n. The procedure of assigning names to the kinds and groups of organisms listed in a taxonomic classification: the rules of nomenclature in botany.

Century Dictionary and Cyclopedia

1. n. A name.
2. n. A system of names; the systematic naming of things; specifically, the names of things in any art or seience, or the whole vocabulary of names or technical terms which are appropriated to any particular branch of science: as, the nomenclature of botany or of chemistry. Compare terminology.
3. n. A glossary, vocabulary, or dictionary.
4. n. Synonyms Dictionary, Glossary, etc. See vocabulary.

Wiktionary

1. n. A name.
2. n. A set of names or terms.
3. n. A set of rules used for forming the names or terms in a particular field of arts or sciences.

GNU Webster's 1913

1. n. A name.
2. n. A vocabulary, dictionary, or glossary.
3. n. The technical names used in any particular branch of science or art, or by any school or individual

WordNet 3.0

1. n. a system of words used to name things in a particular discipline