| HPLC | high-performance liquid chromatography; high-power liquid chromatography; high-pressure liquid chrom... |
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| LLC | Lewis lung carcinoma; liquid-liquid chromatography; long-leg cast; lymphocytic leukemia |
| LSC | late systolic click; left side colon cancer; left subclavian; lichen simplex chronicus; liquid scint... |
| petr | petroleum |
| STP | phenol-preferring sulfotransferase; scientifically treated petroleum; sodium thiopental; standard te... |
| LPG | Liquified Petroleum Gas |
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| TPH | Total petroleum hydrocarbon |
| PCP | phenol-chloroform-petroleum either |
| LLE | Liquid-liquid extraction |
| ASL | Airway surface liquid |
marking medium
| liquid petroleum | <chemical> A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient. Pharmacological action: cathartic, emollients, ointment bases. Chemical name: Hydrocarbon oils (12 Dec 1998) |
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| liquid-liquid chromatography | Chromatography in which both the moving phase and the stationary (or reverse-moving) phase are liquids, as in countercurrent distribution. (05 Mar 2000) |
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| petroleum | Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largely of the methane series, but may vary much in appearance, composition, and properties. It is refined by distillation, and the products include kerosene, benzine, gasoline, paraffin, etc. Petroleum spirit, a volatile liquid obtained in the distillation of crude petroleum at a temperature of 170 deg Fahr, or below. The term is rather loosely applied to a considerable range of products, including benzine and ligroin. The terms petroleum ether, and naphtha, are sometimes applied to the still more volatile products, including rhigolene, gasoline, cymogene, etc. Origin: NL, fr. L. Petra a rock + oleum oil: cf. F. Petrole. Cf. Petrify, and Oil. Source: Websters Dictionary (01 Mar 1998) |
| petroleum ether | petroleum benzin |
| petroleum jelly | <pharmacology> A semisolid unctuous substance, neutral, and without taste or odour, derived from petroleum by distilling off the lighter portions and purifying the residue. It is a yellowish, fatlike mass, transparent in thin layers, and somewhat fluorescent. It is used as a bland protective dressing, and as a substitute for fatty materials in ointments. Petrolatum is the official name for the purified product. Cosmoline and vaseline are commercial names for substances essentially the same, but differing slightly in appearance and consistency or fusibility. Source: Websters Dictionary (01 Mar 1998) |
| gas-liquid chromatography | <technique> A chemistry lab technique, a type of column chromatography, used to separate the components of a mixed substance. The substance is held stationary by an inert solid coated with an inert liquid which is not likely to evaporate (i.e. Is nonvolatile), while a gas (called an eluant) flows past it bringing out the components one at a time. (09 Oct 1997) |
| chromatography, high pressure liquid | Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. (12 Dec 1998) |
| chromatography, liquid | Chromatographic techniques in which the mobile phase is a liquid. (12 Dec 1998) |
| clear liquid diet | A diet, often used postoperatively, consisting usually of water, tea, coffee, gelatin preparations, and clear soups or broth. (05 Mar 2000) |
| Cotunnius' liquid | <anatomy> The fluid which surrounds the membranous labyrinth of the internal ear, and separates it from the walls of the chambers in which the labyrinth lies. Source: Websters Dictionary (01 Mar 1998) |
| heavy liquid petrolatum | <chemical> A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient. Pharmacological action: cathartic, emollients, ointment bases. Chemical name: Hydrocarbon oils (12 Dec 1998) |
| high-performance liquid chromatography | <investigation> A lab technique, a type of column chromatography, which uses a combination of several separation techniques to separate substances at higher resolution. Extremely sharp peaks on the elution profile can be produced with high-performance liquid chromatography (HPLC). (09 Oct 1997) |
| high-pressure liquid chromatography | <investigation> A lab technique, a type of column chromatography, which uses a combination of several separation techniques to separate substances at higher resolution. Extremely sharp peaks on the elution profile can be produced with high-performance liquid chromatography (HPLC). (09 Oct 1997) |
| immersion liquid | <microscopy> Any liquid occupying the space between the object and microscope objective. Such a liquid is usually required by objectives of 3-mm focal length or less. For best results (i.e., resolution) the liquid should be used between the condenser and the microscope slide. Immersion objectives for transmitted light are designed for use with either oil, glycerin, or water, the refractive index of the liquid and the coverslip (if any) being the determining factor. The liquid and the front lens of the objective should ideally coincide in index and in dispersion value. See: homogeneous immersion objective (05 Aug 1998) |
| full liquid diet | A diet consisting only of liquids but including cream soups, ice cream, and milk. (05 Mar 2000) |
| liquid | 1. A substance whose parts change their relative position on the slightest pressure, and therefore retain no definite form; any substance in the state of liquidity; a fluid that is not aeriform. Liquid and fluid are terms often used synonymously, but fluid has the broader signification. All liquids are fluids, but many fluids, as air and the gases, are not liquids. 2. A letter which has a smooth, flowing sound, or which flows smoothly after a mute; as, l and r, in bla, bra. M and n also are called liquids. Liquid measure, a measure, or system of measuring, for liquids, by the gallon, quart, pint, gill, etc. 1. Flowing freely like water; fluid; not solid. "Yes, though he go upon the plane and liquid water which will receive no step." (Tyndale) 2. <physics> Being in such a state that the component parts move among themselves, but do not tend to separate from each other as the particles of gases and vapors do; neither solid nor aeriform; as, liquid mercury, in distinction from mercury solidified or in a state of vapor. 3. Flowing or sounding smoothly or without abrupt transitions or harsh tones. "Liquid melody." 4. Pronounced without any jar or harshness; smooth; as, l and r are liquid letters. 5. Fluid and transparent; as, the liquid air. 6. Clear; definite in terms or amount. "Though the debt should be entirely liquid." Liquid glass. See Soluble glass, under Glass. Origin: L. Liquidus, fr. Liquere to be fluid or liquid; cf. Skr. Ri to ooze, drop, li to melt. Source: Websters Dictionary (01 Mar 1998) |
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