| quantity | Origin: F. Quantite, L. Quantitas, fr. Quantus bow great, how much, akin to quam bow, E. How, who. See Who. 1. The attribute of being so much, and not more or less; the property of being measurable, or capable of increase and decrease, multiplication and division; greatness; and more concretely, that which answers the question "How much?"; measure in regard to bulk or amount; determinate or comparative dimensions; measure; amount; bulk; extent; size. Hence, in specific uses: The relative duration of a tone. 2. <mathematics> That which can be increased, diminished, or measured; especially, anything to which mathematical processes are applicable. Quantity is discrete when it is applied to separate objects, as in number; continuous, when the parts are connected, either in succession, as in time, motion, etc, or in extension, as by the dimensions of space, viz, length, breadth, and thickness. 3. A determinate or estimated amount; a sum or bulk; a certain portion or part; sometimes, a considerable amount; a large portion, bulk, or sum; as, a medicine taken in quantities, that is, in large quantities. "The quantity of extensive and curious information which he had picked up during many months of desultory, but not unprofitable, study." (Macaulay) Quantity of estate, quantities whose values are sought. Source: Websters Dictionary (01 Mar 1998) |
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| molar | <mechanics> Of or pertaining to a mass of matter; said of the properties or motions of masses, as distinguished from those of molecules or atoms. Origin: L. Moles mass. <anatomy> Any one of the teeth back of the incisors and canines. The molar which replace the deciduous or milk teeth are designated as premolars, and those which are not preceded by deciduous teeth are sometimes called true molars. See Tooth. Source: Websters Dictionary (01 Mar 1998) |
| molar absorbancy index | Absorbance (of light) per unit path length (usually the centimeter) and per unit of concentration (moles per liter); a fundamental unit in spectrophotometry. Synonym: absorbancy index, absorptivity, molar absorbancy index, molar absorptivity, molar extinction coefficient. (05 Mar 2000) |
| molar absorption coefficient | Absorbance (of light) per unit path length (usually the centimeter) and per unit of concentration (moles per liter); a fundamental unit in spectrophotometry. Synonym: absorbancy index, absorptivity, molar absorbancy index, molar absorptivity, molar extinction coefficient. (05 Mar 2000) |
| molar absorptivity | Absorbance (of light) per unit path length (usually the centimeter) and per unit of concentration (moles per liter); a fundamental unit in spectrophotometry. Synonym: absorbancy index, absorptivity, molar absorbancy index, molar absorptivity, molar extinction coefficient. (05 Mar 2000) |
| molar behaviour | <psychology> Behaviour described in large response units rather than smaller ones. Compare: molecular behaviour. (05 Mar 2000) |
| molar extinction coefficient | Absorbance (of light) per unit path length (usually the centimeter) and per unit of concentration (moles per liter); a fundamental unit in spectrophotometry. Synonym: absorbancy index, absorptivity, molar absorbancy index, molar absorptivity, molar extinction coefficient. (05 Mar 2000) |
| molar glands | Four or five large buccal glands in the neighborhood of the last molar tooth. Synonym: glandulae molares. (05 Mar 2000) |
| molar heat capacity | <chemistry> The amount of energy required to raise the temperature of one mole of a substance by one degree Celsius (or Kelvin). (09 Jan 1998) |
| molar mass | See: molecular weight. (05 Mar 2000) |
| molar pregnancy | Pregnancy marked by a neoplasm within the uterus, whereby part or all of the chorionic villi are converted into a mass of clear vesicles. (05 Mar 2000) |
| molar solution | <chemistry> A solution made up of one mole of a compound in enough water to make a thousand millilitres of thesolution. (09 Oct 1997) |
| molar, third | The aftermost permanent tooth on each side in the maxilla and mandible. (12 Dec 1998) |
| molar tooth | A tooth having a somewhat quadrangular crown with four or five cusps on the grinding surface; the root is bifid in the lower jaw, but there are three conical roots in the upper jaw; there are six molars in each jaw, three on either side behind the premolars in the permanent dentition; in the deciduous dentition there are but four molars in each jaw, two on either side behind the canines. Synonym: dens molaris, cheek tooth, molar, multicuspid tooth. (05 Mar 2000) |
| mulberry molar | A molar tooth with alternating nonanatomical depressions and rounded enamel nodules on its crown surface, usually associated with congenital syphilis. (05 Mar 2000) |