| quarter-wave plate | <microscopy> A compensator giving a retardation of about 130 nm, and a phase shift of 1/4 ~, thus constituting a device used with a polarizer and analyser designed to produce circularly polarized light. (05 Aug 1998) |
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| quartering | 1. A station. 2. Assignment of quarters for soldiers; quarters. 3. The division of a shield containing different coats of arms into four or more compartments. One of the different coats of arms arranged upon an escutcheon, denoting the descent of the bearer. 4. Quartering block, a block on which the body of a condemned criminal was quartered. Source: Websters Dictionary (01 Mar 1998) |
| quartermaster | 1. An officer whose duty is to provide quarters, provisions, storage, clothing, fuel, stationery, and transportation for a regiment or other body of troops, and superintend the supplies. 2. A petty officer who attends to the helm, binnacle, signals, and the like, under the direction of the master. Quartermaster general, in the United States a staff officer, who has the rank of brigadier general and is the chief officer in the quartermaster's department; in England, an officer of high rank stationed at the War Office having similar duties; also, a staff officer, usually a general officer, accompanying each complete army in the field. Quartermaster sergeant. See Sergeant. Origin: Quarter + master: cf. F. Quartier-maitre. Source: Websters Dictionary (01 Mar 1998) |
| quarternary structure | The three-dimensional structure of a complex protein, this especially refers to the way the subunits fit together. (09 Oct 1997) |
| quartic | <mathematics> A curve or surface whose equation is of the fourth degree in the variables. Source: Websters Dictionary (01 Mar 1998) |
| quartile | <astronomy> Same as Quadrate. Origin: F.quartile aspect, fr. L. Quartus the fourth. See Quart. Source: Websters Dictionary (01 Mar 1998) |
| quartine | <botany> A supposed fourth integument of an ovule, counting from the outside. Origin: F, fr. L. Quartus the fourth. Source: Websters Dictionary (01 Mar 1998) |
| quartisect | Synonym: quadrisect. Origin: L. Quartus, fourth, + seco, pp. Sectus, to cut (05 Mar 2000) |
| quartz | <chemical> A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colourless and transparent, but sometimes also yellow, brown, purple, green, and of other colours; also in cryptocrystalline massive forms varying in colour and degree of transparency, being sometimes opaque. The crystalline varieties include: amethyst, violet; citrine and false topaz, pale yellow; rock crystal, transparent and colourless or nearly so; rose quartz, rosecoloured; smoky quartz, smoky brown. The chief crypto-crystalline varieties are: agate, a chalcedony in layers or clouded with different colours, including the onyx and sardonyx; carnelian and sard, red or flesh-coloured chalcedony; chalcedony, nearly white, and waxy in luster; chrysoprase, an apple-green chalcedony; flint, hornstone, basanite, or touchstone, brown to black in colour and compact in texture; heliotrope, green dotted with red; jasper, opaque, red yellow, or brown, coloured by iron or ferruginous clay; prase, translucent and dull leek-green. Quartz is an essential constituent of granite, and abounds in rocks of all ages. It forms the rocks quartzite (quartz rock) and sandstone, and makes most of the sand of the seashore. Origin: G. Quarz. Source: Websters Dictionary (01 Mar 1998) |
| quartz glass | A transparent, colourless crystal, made by fusing pure quartz sand, which transmits ultraviolet light. (05 Mar 2000) |
| quartz wedge | <microscopy> A compensator consisting of a gradual wedge of quartz of such orientation and dimensions as to show at least several orders of retardation colours as illustrated by the Michel Levy scale of retardation colours and birefringence vs. Thickness of specimen. The Babinet compensator employs two opposing quartz wedges, calibrated in terms of retardation. (05 Aug 1998) |
| quartziferous | <chemical> Consisting chiefly of quartz; containing quartz. Origin: Quartz. Source: Websters Dictionary (01 Mar 1998) |
| quartzite | <chemical> Massive quartz occurring as a rock; a metamorphosed sandstone. Synonym: quartz rock. Origin: Cf. F. Quartzite. Source: Websters Dictionary (01 Mar 1998) |
| quartzoid | <chemistry> A form of crystal common with quartz, consisting of two six-sided pyramids, base to base. Origin: Quartz. Source: Websters Dictionary (01 Mar 1998) |
| quartzose | <chemical> Containing, or resembling, quartz; partaking of the nature or qualities of quartz. Origin: Cf. F. Quartzeux, G. Quarzig. Source: Websters Dictionary (01 Mar 1998) |
| quality factor |
Dependent factor by which absorbed doses are to be multiplied to account for the varying effectiveness of different radiations.
출처: www.epa.gov/enviro/html/rad/rad_terms.html
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| quantitative analysis |
An analysis that ascertains the magnitude, amount, or size, for example, of the attributes, behavior, or opinions of the entity being measured.
출처: www.epa.gov/evaluate/glossary/q-esd.htm
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| quadriplegia |
Paralysis of all four limbs.
출처: www.cnn.com/HEALTH/library/BN/00023.html
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| quadriparesis |
Weakness of all four limbs.
출처: www.cnn.com/HEALTH/library/BN/00023.html
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| Q10 |
A relationship for the effect of temperature on a process such that the process rate increases by the same multiple for every 10
출처: www.pestmanagement.co.uk/lib/glossary/glossary_q.s...
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| q | edible nutlike seed of the quandong fruit |
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| q | Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit |
| q | Australian tree with edible flesh and edible nutlike seed |
| q | QUAsi Non-Governmental Organization |
| q | (physics) of or relating to a quantum or capable of existing in only one of two states |
| q | the quality of being measurable |
| q | capable of being quantified |
| q | the act of discovering or expressing the quantity of something |
| q | a limitation imposed on the variables of a proposition (as by the quantifiers `some' or `all' or `no') |
| q | (grammar) a word that expresses a quantity (as `fifteen' or `many') |
| q | (logic) a word (such as `some' or `all` or `no') that binds the variables in a logical proposition |
| q | express as a number or measure or quantity |