| MSDC | Mass Spectrometry Data Centre |
|---|---|
| RIMS | resonance ionization mass spectrometry |
| at | air tight; atom, atomic |
| BM | Bachelor of Medicine; barium meal; basal medium; basal metabolism; basement membrane; basilar membra... |
| MMR | mass miniature radiography; masseter muscle rigidity; maternal mortality rate; measles-mumps-rubella... |
| iodine-fast | Denoting hyperthyroidism unresponsive to iodine therapy, which develops frequently in most cases so treated. (05 Mar 2000) |
|---|---|
| fast | 1. Firmly fixed; closely adhering; made firm; not loose, unstable, or easily moved; immovable; as, to make fast the door. "There is an order that keeps things fast." (Burke) 2. Firm against attack; fortified by nature or art; impregnable; strong. "Outlaws . . . Lurking in woods and fast places." (Spenser) 3. Firm in adherence; steadfast; not easily separated or alienated; faithful; as, a fast friend. 4. Permanent; not liable to fade by exposure to air or by washing; durable; lasting; as, fast colours. 5. Tenacious; retentive. "Roses, damask and red, are fast flowers of their smells." (Bacon) 6. Not easily disturbed or broken; deep; sound. "All this while in a most fast sleep." (Shak) 7. Moving rapidly; quick in mition; rapid; swift; as, a fast horse. 8. Given to pleasure seeking; disregardful of restraint; reckless; wild; dissipated; dissolute; as, a fast man; a fast liver. Fast and loose, now cohering, now disjoined; inconstant, especially. In the phrases to play at fast and loose, to play fast and loose, to act with giddy or reckless inconstancy or in a tricky manner; to say one thing and do another "Play fast and loose with faith." . Fast and loose pulleys, to make secure; to fasten firmly, as a vessel, a rope, or a door. Origin: OE, firm, strong, not loose, AS. Fst; akin to OS. Fast, D. Vast, OHG. Fasti, festi, G. Fest, Isel. Fastr, Sw. & Dan. Fast, and perh. To E. Fetter. The sense swift comes from the idea of keeping close to what is pursued; a Scandinavian use. Cf. Fast, adv, Fast, v, Avast. 1. In a fast, fixed, or firmly established manner; fixedly; firmly; immovably. "We will bind thee fast." (Judg. Xv. 13) 2. In a fast or rapid manner; quickly; swiftly; extravagantly; wildly; as, to run fast; to live fast. Fast by, or Fast beside, close or near to; near at hand. "He, after Eve seduced, unminded slunk Into the wood fast by." (Milton) "Fast by the throne obsequious Fame resides." (Pope) Origin: OE. Faste firmly, strongly, quickly, AS. Faste. See Fast. Source: Websters Dictionary (01 Mar 1998) |
| fast component | <molecular biology> A segment of eukaryotic DNA consisting of highly-repeated nucleotide sequences which, when the entire duplex DNA molecule is denatured (the double-stranded helix comes apart and becomes single strands) and then allowed to renature (the complementary single strands come together to form a helix), will be the first segment to renature. (09 Oct 1997) |
| fast green FCF | An acid arylmethane dye widely used in histology and cytology and less subject to fading than light green FCF which it has replaced in many procedures; used as a quantitative cytochemical stain for histones at alkaline pH after acid extraction of DNA, and also in electrophoresis as a protein stain. (05 Mar 2000) |
| fast neutron | <physics> Neutron with energy greater than roughly 100,000 electron volts (100 keV). Distinguished from slow or thermal neutrons. (09 Oct 1997) |
| fast neutrons | Neutrons, the energy of which exceeds some arbitrary level, usually around one million electron volts. (12 Dec 1998) |
| fast pyrolysis | Thermal conversion of biomass by rapid heating to between 450> To 600>C in the absence of oxygen. (05 Dec 1998) |
| fast ray | <microscopy> The fast ray or fast component for a crystal or fibre corresponds to the lower refractive index. (05 Aug 1998) |
| fast smear | A cytologic smear containing material from the vaginal pool and pancervical scrapings, mixed and prepared on one microscopic slide, smeared, and fixed immediately; used principally for routine screening of ovaries, endometrium, cervix, vagina, and hormonal states. (05 Mar 2000) |
| Kluver-Barrera Luxol fast blue stain | <technique> In combination with cresyl violet, a stain useful for demonstrating myelin and Nissl substance. (05 Mar 2000) |
| liquid-metal fast-breeder reactor | <physics> Fission breeder reactor concept using liquid-metal coolant and breeding additional fuel off fast neutrons. See: breeder reactor. (09 Oct 1997) |
| Luxol fast blue | Name for a group of closely related copper phthalocyanin dyes used as stains (with PAS, PTAH, haematoxylin, silver nitrate, etc.) for myelin in nerve fibres. (05 Mar 2000) |
| adrenal mass | <radiology> Metastasis, most common (especially lung, melanoma), primary adenocarcinoma, large at diagnosis (greater than 5 cm), usually functional (increased corticosteroids most likely to be Cushing's), rapid growth, benign adrenal adenoma, with or without functional, nonfunctional occurs in 2-8% of population, diff from metastasis: MRI (metastasis bright on T2), biopsy, follow, pheochromocytoma, neuroblastoma, myelolipoma, cyst / pseudocyst see also: adrenal calcification, haemorrhage (12 Dec 1998) |
| apperceptive mass | The already existing knowledge base in a similar or related area with which the new perceptual material is articulated. (05 Mar 2000) |
| atomic mass | <chemistry, physics> The mass of an atom relative to other atoms. The present-day basis of the scale of atomic weights is carbon, the most common isotope of this element has arbitrarily been assigned an atomic weight of 12. The unit of the scale is 1/12 the weight of the carbon atom or roughly the mass of one proton or one neutron. The atomic weight of any element is approximately equal to the total number of protons and neutrons in is nucleus (16 Dec 1997) |