1. (Science: study) The doctrine of terms; a theory of terms or appellations; a treatise on terms.
2. The terms actually used in any business, art, science, or the like; nomenclature; technical terms; as, the terminology of chemistry. The barbarous effect produced by a german structure of sentence, and a terminology altogether new. (De Quincey)
Origin: L. Terminus term: cf. F. Terminologie.