n. [ L. oleum oil + -graph. ] 1. (Chem.) The form or figure assumed by a drop of oil when placed upon water or some other liquid with which it does not mix. [ 1913 Webster ]

2. (Painting) A picture produced in oils by a process analogous to that of lithographic printing. [ 1913 Webster ]

n. 1. Art or process of producing the pictures known as oleographs. [ Webster 1913 Suppl. ]

2. A process of identifying oils by their oleographs. [ Webster 1913 Suppl. ]

n. [ L. oleum oil + E. margarine, margarin. ] [ Written also oleomargarin. ] 1. A liquid oil made from animal fats (esp. beef fat) by separating the greater portion of the solid fat or stearin, by crystallization. It is mainly a mixture of olein and palmitin with some little stearin. [ archaic ] [ 1913 Webster ]

2. An artificial butter made by emulsifying a fatty oil with more or less milk and water; it was formerly made predominantly from animal fats, but now is made predominantly or exclusively from vegetable oils, sometimes mixed with animal fats. [ 1913 Webster +PJC ]

☞ Oleomargarine was wrongly so named, as it contains no margarin proper, but olein, palmitin, and stearin, a mixture of palmitin and stearin having formerly been called margarin by mistake. [ 1913 Webster ]

n. [ L. oleum oil + -meter. ] (Chem.) An instrument for ascertaining the weight and purity of oil; an elaiometer. [ 1913 Webster ]

n. [ L. oleum + -one, 1. ] (Chem.) An oily liquid, obtained by distillation of calcium oleate, and probably consisting of the ketone of oleic acid. [ 1913 Webster ]

An oil expressed from certain animal fats (esp. beef suet), the greater portion of the solid fat, or stearin, being left behind. It is mixture of olein, palmitin, and a little stearin. [ Webster 1913 Suppl. ]

n. [ L. oleum oil + Gr. &unr_; fleeting. ] (Chem.) See Elaeoptene. [ R. ] [ 1913 Webster ]

n. [ L. oleum oil + E. resin. ] 1. (Chem.) A natural mixture of a terebinthinate oil and a resin. [ 1913 Webster ]

2. (Med.) A liquid or semiliquid preparation extracted (as from capsicum, cubebs, or ginger) by means of ether, and consisting of fixed or volatile oil holding resin in solution. [ 1913 Webster ]

-- O`le*o*res"in*ous a. [1913 Webster]

n. The state or quality of being oily or fat; fatness. [ R. ] B. Jonson. [ 1913 Webster ]

{ } a. [ L. oleosus, fr. oleum oil. ] Oily. [ R. ] Ray. Floyer. [ 1913 Webster ]