olein /ōˈli-in/ noun

A glycerine ester of oleic acid

oleo /ōˈli-ō/ noun (pl ōˈleos)

1. Short form of oleograph or oleomargarine
2. An oil-containing telescopic part of the landing gear of an aircraft, acting as a shock absorber on landing (also oleo leg)

oˈleograph noun

A print in oil colours to imitate an oil painting

oleographˈic adjective

oleogˈraphy noun

oleophilˈic adjective

1. Having affinity for oils
2. Wetted by oil in preference to water

olesˈtra noun

A synthetic fat substitute that passes through the gastrointestinal tract without being digested or absorbed

oleum noun

A solution of sulphur trioxide in sulphuric acid (also fuming sulphuric acid)

oleo leg see oleo above.

oleomarˈgarine noun

1. Margarine (US)
2. A yellow fatty substance obtained from beef tallow and used in the manufacture of margarine, soap, etc

oleoresˈin noun

A solution of a resin in an oil

oleoresˈinous adjective