fixed oil


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Related to fixed oil: volatile oil

oil

 [oil]
1. an unctuous, combustible substance that is liquid, or easily liquefiable, on warming, and is not miscible with water, but is soluble in ether. Such substances, depending on their origin, are classified as animal, mineral, or vegetable oils. Depending on their behavior on heating, they are classified as volatile or fixed. For specific oils, see under the name, as castor oil.
2. a fat that is liquid at room temperature.
essential oil volatile o.
expressed oil (fatty oil) (fixed oil) one that is not volatile, i.e., does not evaporate on warming; such oils consist of a mixture of fatty acids and their esters, and are classified as solid, semisolid, and liquid, or as drying, semidrying, and nondrying as a function of their tendency to solidify on exposure to air.
volatile oil an oil that evaporates readily; such oils occur in aromatic plants, to which they give odor and other characteristics.

fat·ty oil

an oil derived from both animals and plants; chemically, a glyceride of a fatty acid that, by substitution of the glycerine by an alkaline base, is converted into a soap; a fatty oil, in contrast to a volatile oil, is permanent, leaving a stain on an absorbent surface, and thus is not capable of distillation; it is obtained by expression or extraction; the consistency varies with the temperature, some being liquid (o.'s proper), others semisolid (fats), and others solid (tallows) at ordinary temperatures; both liquid and semisolid oils are congealed by cold and the solids are liquified by heat.
Synonym(s): fixed oil

fixed oil

Herbal medicine
A general term for a type of essential oil produced by plants that does not volatilise (i.e., is not aromatic).

oil

1. an unctuous, combustible substance that is liquid, or easily liquefiable, on warming, and is not miscible with water, but is soluble in ether. Such substances, depending on their origin, are classified as animal, mineral or vegetable oils.
2. a fat that is liquid at room temperature.

automobile oil
oil of chenopodium
extracted from the plant Chenopodium ambrosioides. An old-time anthelmintic.
oil-contamination
the coating of spilled crude oil on waterbirds that destroys the waterproofing and insulating properties of their feathers, predisposing them to hypothermia and impairing flight and swimming abilities. It also blocks nares, causes aspiration pneumonia, and has toxic effects on kidneys, reproduction and the gastrointestinal tract.
oil crop
crops grown primarily for their oil production, e.g. linseed, safflower, sunflower, rapeseed.
crude petroleum oil
crude oil and its several distillates are all relished by cattle and can cause poisoning. The oil as it is extracted from subterranean deposits varies widely in its additional contents. These may be salt or sulfur and cause poisoning by those substances. Oil causes vomiting and death from aspiration pneumonia. Animals do not do well and oil stays in the gut, appearing in the feces for long periods.
diesel and fuel oil
essential oil
called also ethereal oil; see volatile oil (below).
ethereal oil
see volatile oil (below).
fixed oil
an oil that does not evaporate on warming and occurs as a solid, semisolid or liquid.
oil gland
irritant oil
occurs in plants; causes gastroenteritis; includes bryonin, croton and castor oils.
mineral oil
a mixture of liquid hydrocarbons from petroleum. Mineral oil is available in both light (light liquid petrolatum) and heavy (liquid, or heavy liquid, petrolatum) grades. Light mineral oil is used chiefly as a vehicle for drugs, though it may also be used as a cathartic and to cleanse the skin. Heavy mineral oil is used as a cathartic, solvent and oleaginous vehicle. Excessive intake over a long period results in hypovitaminosis A.
oil pollution
aquatic birds are worst affected because of pasting together of feathers, poisoning because of contamination of food source, blocking of nares and eyes and starvation because of unpalatability of food supply.
oil products
includes kerosene (or kerosine, or paraffin), gasoline (or petrol), diesoline and additives to lubricating oils, e.g. highly chlorinated naphthalenes; any of them may cause poisoning.
oil spill
accidental or negligent discharge of industrial oil on a body of water; effect is that the oil floats and pollutes the shore and covers aquatic birds and mammals with fatal results in most cases; salvage depends on capture of affected birds and animals and removing the oil.
sump oil
sweet birch oil
see methyl salicylate.
turpentine oil
see turpentine oil.
volatile oil
an oil that evaporates readily; such oils occur in aromatic plants, to which they give odor and other characteristics.
oil of Wintergreen
see methyl salicylate.
yew oil
an irritant oil in Taxus baccata, but not the principal irritant in that plant—taxine is.
References in periodicals archive ?
Effects of Nigella sativa fixed oil on blood homeostasis in rat.
45 w/w volatile oil, and more than 30% fixed oil (El-Alfy et al.
5% w/v solution of the fixed oil in chloroform were applied to the TLC plate.
Each group of 10 mice (5 males and 5 females) received, respectively, a single oral dose of 10, 15, 20, 25, 30, 40 or 50 ml/kg body weight of Nigella sativa fixed oil.
The control group rats (C-rats) and Nigella sativa-treated rat group (Ns-rats) received, respectively, 2 ml/kg body weight of distilled water and Nigella sativa fixed oil via the oral route for 12 weeks.
The fixed oil obtained from Nigella sativa seeds (chestnut color, agreeable perfume, extraction yield: 26% w/w) was analyzed using thin layer chromatography (TLC).
Generally, diarrhea was observed and the animals died 12 hours after the administration of fixed oil.
The effects of the chronic administration of Nigella sativa fixed oil (2 ml/kg body wt.
The high values of oral and intraperitoneal lethal doses of Nigella sativa fixed oil ([LD.
Nigella sativa fixed oil has been well-analyzed (Abdel-Aal and Attia, 1993; Aboul-Enein et al.
Nigella sativa fixed oil, like the fibrates, decreases serum cholesterol and triglycerides, and ameliorates serum HDL.