OLEFIANT O*le"fi*ant, a. Etym: [F. oléfiant, fr.L. oleum oil + -ficare (in comp.). Cf. -Fy.] (Chem.)
Defn: Forming or producing an oil; specifically, designating a colorless gaseous hydrocarbon called ethylene. [Archaic]
OLEFINE
O"le*fine, n. Etym: [From Olefiant.] (Chem.)
Defn: Olefiant gas, or ethylene; hence, by extension, any one of the series of unsaturated hydrocarbons of which ethylene is a type. See Ethylene.
OLEIC
O"le*ic, a. Etym: [L. oleum oil: cf. F. oléique.] (Physiol.Chem.)
Defn: Pertaining to, derived from, or contained in, oil; as, oleic acid, an acid of the acrylic acid series found combined with glyceryl in the form of olein in certain animal and vegetable fats and oils, such as sperm oil, olive oil, etc. At low temperatures the acid is crystalline, but melts to an oily liquid above 14
OLEIFEROUS
O`le*if`er*ous, a. Etym: [L. oleum oil + -ferous: cf.F. oléifére.]
Defn: Producing oil; as, oleiferous seeds.
OLEIN
O"le*in, n. Etym: [L. oleum oil: cf. F. oléine.] (Physiol. Chem.)
Defn: A fat, liquid at ordinary temperatures, but solidifying at temperatures below 0° C., found abundantly in both the animal and vegetable kingdoms (see Palmitin). It dissolves solid fats, especially at 30-40° C. Chemically, olein is a glyceride of oleic acid; and, as three molecules of the acid are united to one molecule of glyceryl to form the fat, it is technically known as triolein. It is also called elain.