lubricating oil
Noun
Meaning
a thick fatty oil (especially one used to lubricate machinery)
Source: WordNetSynonyms
Antonyms
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Examples
Financial service providers act as the lubricating oil in the economy. They link consumers who want to invest their savings for a good return with companies who want to borrow on best terms for expansion.
Advantages are that microturbines may be designed with foil bearings and air-cooling operating without lubricating oil, coolants or other hazardous materials.
Paint, varnish, lubricating oil, leather dressings, furniture polish, insecticides, and nitroglycerin are made from peanut oil.
Due to primitive carburetion and absence of a true sump, the lubricating oil was added to the fuel/air mixture.
"Normal" rotaries Most rotaries however, had normal inlet valves, so that the fuel (and lubricating oil) was taken into the cylinders already mixed with air - as in a normal four-stroke engine.
Water-cooled models use engine coolant to keep lubricating oil cooler, avoiding possible oil coking (destructive distillation of engine oil) from the extreme heat in the turbine.