| INAA | instrumental neutron activation analysis |
|---|---|
| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
| PBNA | partial body neutron activation |
| RNAA | radiochemical neutron activation analysis |
| TBNA | total body neutron activation; treated but not admitted |
| BNCT | Boron Neutron Capture Therapy |
|---|---|
| IVNAA | In vivo neutron activation analysis |
| INAA | Instrumental Neutron Activation Analysis |
| NAA | Neutron Activation Analysis |
| NCT | Neutron Capture Therapy |
| boron neutron capture therapy | A technique for the treatment of neoplasms, especially gliomas and melanomas in which boron-10, an isotope, is introduced into the target cells followed by irradiation with thermal neutrons. (12 Dec 1998) |
|---|---|
| neutron | <physics> An elementary atomic particle that has no charge and a mass that is approximately the same as that of a proton. Neutrons are found in allatoms except the lightest isotopes of hydrogen. (09 Jan 1998) |
| neutron activation analysis | Activation analysis in which the specimen is bombarded with neutrons. Identification is made by measuring the resulting radioisotopes. (12 Dec 1998) |
| neutron capture therapy | A technique for the treatment of neoplasms in which an isotope is introduced into target cells followed by irradiation with thermal neutrons. (12 Dec 1998) |
| neutron radiation | An emission of neutrons from the nucleus of an atom by decay or fission. (05 Mar 2000) |
| integrated neutron flux | <radiobiology> Sum (integral) of the neutron flux (neutrons per unit time per unit area, see flux) over all time, total number of neutrons which passed through a unit area. Important figure-of-merit in testing effects of neutron radiation on materials, and in assessing how long such materials can survive exposure to neutron sources (such as fission reactor cores and D-T fusion plasmas). (09 Oct 1997) |
| thermal neutron | <radiobiology> A neutron in thermal equilibrium with its surrounding environment. Thermal neutrons are those that have been slowed down by a moderator to speeds characteristic of the local temperature. Compare: fast neutron. (09 Oct 1997) |
| fast neutron | <physics> Neutron with energy greater than roughly 100,000 electron volts (100 keV). Distinguished from slow or thermal neutrons. (09 Oct 1997) |
| arrhythmias, slow | Abnormally slow heart rhythms, medically termed bradycardia. (12 Dec 1998) |
| slow | To go slower; often with up; as, the train slowed up before crossing the bridge. 1. Moving a short space in a relatively long time; not swift; not quick in motion; not rapid; moderate; deliberate; as, a slow stream; a slow motion. 2. Not happening in a short time; gradual; late. "These changes in the heavens, though slow, produced Like change on sea and land, sidereal blast." (Milton) 3. Not ready; not prompt or quick; dilatory; sluggish; as, slow of speech, and slow of tongue. "Fixed on defense, the Trojans are not slow To guard their shore from an expected foe." (Dryden) 4. Not hasty; not precipitate; acting with deliberation; tardy; inactive. "He that is slow to wrath is of great understanding." (Prov. Xiv. 29) 5. Behind in time; indicating a time earlier than the true time; as, the clock or watch is slow. 6. Not advancing or improving rapidly; as, the slow growth of arts and sciences. 7. Heavy in wit; not alert, prompt, or spirited; wearisome; dull. Slow is often used in the formation of compounds for the most part self-explaining; as, slow-gaited, slow-paced, slow-sighted, slow-winged, and the like. Slow coach, a slow person. See def.7, above. <zoology> Slow lemur, or Slow loris, an East Indian nocturnal lemurine animal (Nycticebus tardigradus) about the size of a small cat; so called from its slow and deliberate movements. It has very large round eyes and is without a tail. Called also bashful Billy. Slow match. See Match. Synonym: Dilatory, late, lingering, tardy, sluggish, dull, inactive. Slow, Tardy, Dilatory. Slow is the wider term, denoting either a want of rapid motion or inertness of intellect. Dilatory signifies a proneness to defer, a habit of delaying the performance of what we know must be done. Tardy denotes the habit of being behind hand; as, tardy in making up one's acounts. Origin: OE. Slow, slaw, AS. Slaw; akin to OS. Slu blunt, dull, D. Sleeuw, slee, sour, OHG. Slo blunt, dull, Icel. Slr, slr, Dan. Slov, Sw. Slo. Cf. Sloe, and Sloth. Source: Websters Dictionary (01 Mar 1998) |
| slow channel-blocking agent | calcium channel-blocking agent |
| slow combustion | See: decay. Spontaneous combustion, the ignition of a mass of material by heat developed within it by the oxidation of the substances composing it without external ignition. (05 Mar 2000) |
| slow fever | A continued fever of long duration. (05 Mar 2000) |
| slow muscle | <physiology> Striated muscle used for long term activity (e.g. Postural support). Depend therefore on oxidative metabolism and have many mitochondria and abundant myoglobin. (18 Nov 1997) |
| slow pyrolysis | Thermal conversion of biomass to fuel by slow heating to less than 450>C in the absence of oxygen. (05 Dec 1998) |
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