| free water | Water in the body that can be removed by ultrafiltration and in which substances can be dissolved. (05 Mar 2000) |
|---|---|
| free water clearance | The amount of water excreted in the urine beyond that which would accompany the excreted solutes if the urine were isosmotic with plasma; it represents the loss of body water in excess of solute tending to raise body osmolality and making urine hyposmotic. Unlike other clearance's, it is calculated by subtracting the osmolal clearance from the actual volume of urine excreted per minute. A negative value for free water clearance represents the amount of water that the body has reclaimed from isosmotic tubule fluid to make the urine hyperosmotic and to lower body osmolality. (05 Mar 2000) |
| free wave | <radiobiology> A wave (for example, electromagnetic) traveling in a homogeneous infinite medium (no boundary conditions). (09 Oct 1997) |
| free will | 1. A will free from improper coercion or restraint. "To come thus was I not constrained, but did On my free will." (Shak) 2. The power asserted of moral beings of willing or choosing without the restraints of physical or absolute necessity. Source: Websters Dictionary (01 Mar 1998) |
| ajowan oil | A volatile oil distilled from the fruit of Carum copticum, one of the sources of thymol; a carminative, aromatic, and expectorant. Synonym: ptychotis oil. (05 Mar 2000) |
| allspice oil | pimenta oil |
| almond oil | A fixed oil expressed from sweet almonds, the kernels of varieties of Prunus amygdalus; used in ointments. Bitter almond oil, a volatile oil from the dried ripe kernels of bitter almonds and from other kernels containing amygdalin; it contains between 2 and 4% of hydrocyanic acid and 95% of benzaldehyde. (05 Mar 2000) |
| apple oil | Isoamyl isovalerate;used as a sedative; formerly used in the treatment of gallstones because of its solvent action on cholesterol. Synonym: apple oil. (05 Mar 2000) |
| apricot kernel oil | See: persic oil. (05 Mar 2000) |
| arachis oil | Oil extracted from the kernels of one or more cultivated varieties of Arachis hypogaea (family Leguminosae); used as a solvent for intramuscular injections and in the preparation of foods. Synonym: arachis oil. (05 Mar 2000) |
| aromatic castor oil | Contains cinnamon oil 3, clove oil 1, vanillin 1, saccharin 0.5, alcohol 30, in castor oil to make 1000; a cathartic. (05 Mar 2000) |
| barrel of oil equivalent | A unit of energy equal to the amount of energy contained in a barrel of crude oil. Approximately 5.78 million Btu or 1,700 kWh. A barrel is a liquid measure equal to 42 gallons. (05 Dec 1998) |
| beech oil | A thick, oily, dark brown liquid with the odour of creosote; largely used as a source of creosote. Synonym: beech oil. (05 Mar 2000) |
| benne oil | <chemical> The refined fixed oil obtained from the seed of one or more cultivated varieties of sesamum indicum. It is used as a solvent and oleaginous vehicle for drugs and has been used internally as a laxative and externally as a skin softener. It is used also in the manufacture of margarine, soap, and cosmetics. Chemical name: Fats and Glyceridic oils, sesame (12 Dec 1998) |
| betula oil | Oil of sweet birch, a volatile oil obtained by distillation from the bark of Betula lenta (sweet birch); used as a flavoring agent and as a counterirritant liniment. See: methyl salicylate. (05 Mar 2000) |