| ITLC | instant thin-layer chromatography |
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| MOTSA | multiple overlapping thin slab acquisition [technique] |
| PTLC | precipitation thin-layer chromatography |
| Rf | in paper or thin-layer chromatography, the distance that a spot of a substance has moved from the po... |
| Rst | in paper or thin layer chromatography, the distance that a spot of a substance has moved, relative t... |
| thin | Not thickly or closely; in a seattered state; as, seed sown thin. "Spain is thin sown of people." (Bacon) 1. Having little thickness or extent from one surface to its opposite; as, a thin plate of metal; thin paper; a thin board; a thin covering. 2. Rare; not dense or thick; applied to fluids or soft mixtures; as, thin blood; thin broth; thin air. "In the day, when the air is more thin." (Bacon) "Satan, bowing low His gray dissimulation, disappeared, Into thin air diffused." (Milton) 3. Not close; not crowded; not filling the space; not having the individuals of which the thing is composed in a close or compact state; hence, not abundant; as, the trees of a forest are thin; the corn or grass is thin. "Ferrara is very large, but extremely thin of people." (Addison) 4. Not full or well grown; wanting in plumpness. "Seven thin ears . . . Blasted with the east wind." (Gen. Xli. 6) 5. Not stout; slim; slender; lean; gaunt; as, a person becomes thin by disease. 6. Wanting in body or volume; small; feeble; not full. "Thin, hollow sounds, and lamentable screams." (Dryden) 7. Slight; small; slender; flimsy; wanting substance or depth or force; superficial; inadequate; not sufficient for a covering; as, a thin disguise. "My tale is done, for my wit is but thin." (Chaucer) Thin is used in the formation of compounds which are mostly self-explaining; as, thin-faced, thin-lipped, thin-peopled, thin-shelled, and the like. Thin section. See Section. Origin: OE. Thinne, thenne, thunne, AS. Thynne; akin to D. Dun, G. Dunn, OHG. Dunni, Icel. Thunnr, Sw. Tunn, Dan. Tynd, Gael. & Ir. Tana, W. Teneu, L. Tenuis, Gr. (in comp) stretched out, stretched, stretched out, long, Skr. Tanu thin, slender; also to AS. Enian to extend, G. Dehnen, Icel. Enja, Goth. Anjan (in comp), L. Tendere to stretch, tenere to hold, Gr. To stretch, Skr. Tan. 51 & 237. Cf. Attenuate, Dance, Tempt, Tenable, Tend to move, Tenous, Thunder, Tone. Source: Websters Dictionary (01 Mar 1998) |
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| thin filament | Filaments 7-9nm diameter attached to the Z discs of striated muscle, have opposite polarity in each half sarcomere. Built of F actin with associated tropomyosin and troponin. (18 Nov 1997) |
| thin film | <radiobiology> Plasmas are often used to deposit thin-film coatings on various materials. (09 Oct 1997) |
| thin layer chromatography | <technique> Chromatography using a thin layer of powdered medium on an inert sheet to support the stationary phase. Faster than paper chromatography, gives higher resolution and requires smaller samples. (18 Nov 1997) |
| thin-layer chromatography | Chromatography through a thin layer of cellulose or similar inert material supported on a glass or plastic plate. (05 Mar 2000) |
| thin-layer electrophoresis | Electrophoretic migrations (separations) through a thin layer of inert material, such as cellulose, supported on a glass or plastic plate. (05 Mar 2000) |
| thin-layer immunoassay | A method for detection of antigen-antibody reactions, applicable to detection of either antigen or antibody, based on the fact that either reactant, when added to a polystyrene surface (such as a well in a polystyrene plate) is adsorbed as a thin layer and acts as an immunosorbent capable of binding with the second reactant. (05 Mar 2000) |
| thin section | A section of tissue for electron microscopic examination; the specimen is fixed, typically in glutaraldehyde and/or in osmium tetroxide, embedded in a plastic resin, and sectioned at less than 0.1 um in thickness with a glass or diamond knife in an ultramicrotome. (05 Mar 2000) |
| thin-skinned | Having a thin skin; hence, sensitive; irritable. Source: Websters Dictionary (01 Mar 1998) |
| acoustic spots | See: macula of utricle, macula of saccule. Bitot's spots, small, circumscribed, lusterless, grayish white, foamy, greasy, triangular deposits on the bulbar conjunctiva adjacent to the cornea in the area of the palpebral fissure of both eyes; occurs in vitamin A deficiency. (05 Mar 2000) |
| blood spots | Haemorrhagic graafian follicles seen in ovaries of mice, caused by injection of urine of pregnant women; a positive result in the now obsolete Aschheim-Zondek test for pregnancy. (05 Mar 2000) |
| Graefe's spots | Small areas over the vertebrae or near the supraorbital foramen, pressure upon which causes relaxation of blepharofacial spasm. (05 Mar 2000) |
| rose spots | Characteristic exanthema of typhoid fever; 10-20 small pink papules on the lower trunk lasting a few days and leaving hyperpigmentation. (05 Mar 2000) |
| Roth's spots | A round white retina spot surrounded by haemorrhage in bacterial endocarditis, and in other retinal haemorrhagic conditions. (05 Mar 2000) |
| ruby spots | <tumour> A red papule due to weakening of the capillary wall, seen mostly in persons over 30 years of age. Synonym: cherry angioma, De Morgan's spots, ruby spots. (05 Mar 2000) |