Nomenclature: noun  no·men·cla·ture (ˈnō-mən-ˌklā-chər also nō-ˈmen-klə-ˌchu̇r, -ˈmeŋ-, -chər, -ˌtyu̇r, -ˌtu̇r)

definition:   the act or process or an instance of naming

alternative defintion: a system or set of terms or symbols especially in a particular science, discipline, or art :  an international system of standardized New Latin names used in biology for kinds and groups of kinds of animals and plants