The Collaborative International Dictionary of English v.0.48:

Terminology \Ter`mi*nol"o*gy\, n. [L. terminus term + -logy: cf.
   F. terminologie.]
   1. The doctrine of terms; a theory of terms or appellations;
      a treatise on terms.
      [1913 Webster]

   2. The terms actually used in any business, art, science, or
      the like; nomenclature; technical terms; as, the
      terminology of chemistry.
      [1913 Webster]

            The barbarous effect produced by a German structure
            of sentence, and a terminology altogether new. --De
                                                  Quincey.
      [1913 Webster]

WordNet (r) 3.0 (2006):

terminology
    n 1: a system of words used to name things in a particular
         discipline; "legal terminology"; "biological nomenclature";
         "the language of sociology" [syn: terminology,
         nomenclature, language]

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "terminology":
   antonomasia, argot, binomial nomenclature, biosystematics,
   biosystematy, cant, class, classification, dictionary, family,
   gazetteer, genus, gibberish, glossary, glossology, gobbledygook,
   gradus, jargon, kingdom, language, lexicon, lingo, locutions,
   nomenclator, nomenclature, onomastics, onomatology, order,
   orismology, palaver, phraseology, phrasing, phylum, place-names,
   place-naming, polyonymy, promptorium, shoptalk, species,
   systematics, taxonomy, terms, thesaurus, toponymy, trinomialism,
   vocabulary, word list, wording, words