| LCL | Levinthal-Coles-Lillie [body]; lower confidence limit; lower control limit; lymphoblastoid cell line... |
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| UCL | ulnar collateral ligament; upper collateral ligament; upper confidence limit; upper control limit; u... |
| DPI | daily permissible intake; days post inoculation; dietary protein intake; diphtheria-pertussis immuni... |
| MDPD | maximum daily permissible dose |
| MPC | marine protein concentrate; maximum permissible concentration; mean plasma concentration; meperidine... |
| beta limit | <radiobiology> if the plasma pressure in a tokamak becomes too high, the so-called ballooning modes become unstable and lead to a loss of confinement (sometimes catastrophic, sometimes not). The exact value at which this occurs depends strongly on the magnetic field B, the plasma minor radius a, and the toroidal plasma current I, such that maximum value of the normalised beta, beta_N=betaBa/I, is around 4% (with B in Teslas, a in metres, and I in Mega-amperes). The exact value depends on details of the plasma shape, the plasma profiles, and the safety factor. Synonym: troyon limit. (09 Oct 1997) |
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| visibility, limit of | <microscopy> For the normal eye, the limit of visibility is considerably below the limits of resolution. It depends largely on contrast and intensity of illumination. (05 Aug 1998) |
| central limit theorem | The sum (or average) of n realizations of the same process, provided only that it has a finite variance, will approach the gaussian distribution as n becomes indefinitely large. This theory provides a broad warrant for the use of normal theory even for nongaussian data. In the form stated here, it constitutes the classical version; more general versions allow serious relaxation of the usual assumptions. (05 Mar 2000) |
| control limit | A regulatory value applied to the airborne concentration in the workplace of a potentially poisonous substance which is judged to be reasonably practicable for the whole spectrum of work activities and which must not normally be exceeded. (09 Oct 1997) |
| Hayflick's limit | <cell culture> The limit of human cell division in subcultures; such cells will divide only about 50 times before dying out. (05 Mar 2000) |
| proportional limit | The greatest stress that a material is capable of sustaining without any deviation from proportionality of stress to strain (Hooke's law). (05 Mar 2000) |
| sparrow limit | <microscopy> The spatial frequency at which the modulation transfer function just becomes 0. See: Abbe limit, Rayleigh criterion. (05 Aug 1998) |
| dextrin limit | The polysaccharide fragments remaining at the end (limit) of exhaustive hydrolysis of amylopectin or glycogen by alpha-1,4-glucan maltohydrolase, which cannot hydrolyze the alpha-1,6 bonds at branch points; accumulates in individuals with type III glycogen storage disease. Synonym: dextrin limit. (05 Mar 2000) |
| quantum limit | The shortest wavelength found in an X-ray spectrum. (05 Mar 2000) |
| threshold limit value | The maximum concentration of a chemical recommended by the American Conference of Government Industrial Hygienists for repeated exposure without adverse health effects on workers. (05 Mar 2000) |
| elastic limit | The greatest stress to which a material may be subjected and still be capable of returning to its original dimensions when the forces are released. (05 Mar 2000) |
| limit | 1. That which terminates, circumscribes, restrains, or confines; the bound, border, or edge; the utmost extent; as, the limit of a walk, of a town, of a country; the limits of human knowledge or endeavor. "As eager of the chase, the maid Beyond the forest's verdant limits strayed." (Pope) 2. The space or thing defined by limits. "The archdeacon hath divided it Into three limits very equally." (Shak) 3. That which terminates a period of time; hence, the period itself; the full time or extent. "The dateless limit of thy dear exile." (Shak) "The limit of your lives is out." (Shak) 4. A restriction; a check; a curb; a hindrance. "I prithee, give no limits to my tongue." (Shak) 5. <logic> A determining feature; a distinguishing characteristic a differentia. 6. <mathematics> A determinate quantity, to which a variable one continually approaches, and may differ from it by less than any given difference, but to which, under the law of variation, the variable can never become exactly equivalent. Elastic limit. See Elastic. Prison limits, a definite, extent of space in or around a prison, within which a prisoner has liberty to go and come. Synonym: Boundary, border, edge, termination, restriction, bound, confine. Origin: From L. Limes, limitis: cf. F.limite; -or from E. Limit, v. See Limit. To apply a limit to, or set a limit for; to terminate, circumscribe, or restrict, by a limit or limits; as, to limit the acreage of a crop; to limit the issue of paper money; to limit one's ambitions or aspirations; to limit the meaning of a word. <astronomy> Limiting parallels, those parallels of latitude between which only an occultation of a star or planet by the moon, in a given case, can occur. Origin: F. Limiter, L. Limitare, fr. Limes, limitis, limit; prob. Akin to limen threshold, E. Eliminate; cf. L. Limus sidelong. Source: Websters Dictionary (01 Mar 1998) |
| limit dextrin | The polysaccharide fragments remaining at the end (limit) of exhaustive hydrolysis of amylopectin or glycogen by alpha-1,4-glucan maltohydrolase, which cannot hydrolyze the alpha-1,6 bonds at branch points; accumulates in individuals with type III glycogen storage disease. Synonym: dextrin limit. (05 Mar 2000) |
| limit dextrinase | <enzyme> An enzyme with action similar to that of isoamylase; it cleaves 1,6-alpha-glucosidic linkages in pullalan, amylopectin, and glycogen, and in alpha-and beta-amylase limit-dextrins of amylopectin and glycogen. Compare: isoamylase. Synonym: limit dextrinase, pullulanase, R enzyme. (05 Mar 2000) |
| limit dextrinosis | Glycogenosis due to amylo-1,6-glucosidase deficiency, resulting in accumulation of abnormal glycogen with short outer chains in liver and muscle. Synonym: Cori's disease, debranching deficiency limit dextrinosis, limit dextrinosis, Forbes' disease. (05 Mar 2000) |