(ˈ)dī+ noun
Etymology: International Scientific Vocabulary di- + pentene
: a liquid terpene hydrocarbon C 10 H 16 found in many essential oils (as Levant wormseed oil), usually obtained along with other terpenoids from certain turpentines, and used chiefly as a solvent and dispersing agent (as for resins and varnishes); dl -limonene — called also cajeputene