[oh-lee-oh] /ˈoʊ liˌoʊ/

a combining form meaning “oil,” used in the formation of compound words:
combining form
oil: oleomargarine

1884, commercial shortening of oleomargarine.

word-forming element meaning “oil” or “oleic,” from Latin oleum (see oil (n.)).

oleo- or ole-
Oil: oleic acid.


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  • Oleochemical

    noun any chemical compound derived from animal or plant fats or oils

  • Oleomargarine

    [oh-lee-oh-mahr-juh-rin, -reen, -mahrj-rin, -reen] /ˌoʊ li oʊˈmɑr dʒə rɪn, -ˌrin, -ˈmɑrdʒ rɪn, -rin/ noun 1. . /ˌəʊlɪəʊˌmɑːdʒəˈriːn/ noun 1. other names (esp US) for margarine n. 1873, “butter substitute made from beef fat,” from French oléomargarine (1854), from oléine (from Latin oleum “oil” + -ine, after glycerine) + margarine. It was regarded as a chemical […]

  • Oleograph

    [oh-lee-uh-graf, -grahf] /ˈoʊ li əˌgræf, -ˌgrɑf/ noun 1. a chromolithograph printed in oil colors on canvas or cloth. /ˈəʊlɪəˌɡrɑːf; -ˌɡræf/ noun 1. a chromolithograph printed in oil colours to imitate the appearance of an oil painting 2. the pattern formed by a drop of oil spreading on water

  • Oleo-oil

    noun 1. a product obtained from beef fat and consisting chiefly of a mixture of olein and palmitin, used for making butterlike foods. /ˈəʊlɪəʊ/ noun 1. an oil extracted from beef fat, consisting mainly of a mixture of olein and palmitin. It is used in the manufacture of margarine

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