| AEC | ankyloblepharon, ectodermal defects, and cleft lip [syndrome]; at earliest convenience; Atomic Energ... |
|---|---|
| ORNL | Oak Ridge National Laboratory |
| AW | able to work; above waist; abrupt withdrawal; alcohol withdrawal; alveolar wall; anterior wall; atom... |
| ABC | absolute basophil count; absolute bone conduction; acalculous biliary colic; acid balance control; a... |
| ABCC | Atomic Bomb Casualty Commission |
| ORNL | Oak Ridge National Laboratory |
|---|---|
| IAEA | International Atomic Energy Agency |
| AJCC | American Joint Commission in Cancer |
| CIE | Commission International de l'Eclairage |
| CPSC | Consumer Product Safety Commission |
| physician payment review commission | A commission created by the consolidated omnibus reconciliation act of 1985, enacted in 1986, and given the mandate to advise congress on medicare-physician payment. The commission members are appointed by the u.s. Office of technology assessment. (12 Dec 1998) |
|---|---|
| commission on professional and hospital activities | The non-profit, non-governmental organization which collects, processes, and distributes data on hospital use. Two programs of the commission are the professional activity study and the medical audit program. (12 Dec 1998) |
| prospective payment assessment commission | The commission charged with evaluating issues and factors which affect the implementation of the prospective payment system. (12 Dec 1998) |
| joint commission on accreditation of healthcare organizations | A private, voluntary, not-for-profit organization which establishes standards for the operation of health facilities and services, conducts surveys, and awards accreditation. (12 Dec 1998) |
| united states federal trade commission | An independent administrative agency concerned with maintaining competitive free enterprise by prohibiting unfair methods of competition and unfair deceptive acts or practices. (12 Dec 1998) |
| land conservation and development commission | (LCDC) A commission appointed to determine land use policy in Oregon. (05 Dec 1998) |
| atomic | 1. Of or pertaining to atoms. 2. Extremely minute; tiny. Atomic philosophy, or Doctrine of atoms, a system which assuming that atoms are endued with gravity and motion accounted thus for the origin and formation of all things. This philosophy was first broached by Leucippus, was developed by Democritus, and afterward improved by Epicurus, and hence is sometimes denominated the Epicurean philosophy. <chemistry> Atomic theory, or the Doctrine of definite proportions, the weight of the atom of an element as compared with the weight of the atom of hydrogen, taken as a standard. Origin: Cf. F. Atomique. Source: Websters Dictionary (01 Mar 1998) |
| atomic absorption spectrophotometry | Determination of concentration by the ability of atoms to absorb radiant energy of specific wavelengths. (05 Mar 2000) |
| atomic bomb | <physics, radiobiology> A weapon with a large explosive power due to the sudden release of energy when the nuclei of heavy atoms such as plutonium-239 or uranium-235 are split. This fission is brought about by the bombardment of the fuel with neutrons, setting off a chain reaction. The bomb releases shock, blast, heat, light, and lethal radiation. The world's first atomic bomb was successfully tested by the United States on July 16, 1945. (13 Nov 1997) |
| atomic core | The nucleus plus the nonvalence electrons. (05 Mar 2000) |
| atomic heat | The amount of heat required to raise an atom from 0 |
| 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) |
| atomic mass unit | <chemistry> One-twelfth the mass of a neutral atom of the most abundant isotope of carbon. (16 Dec 1997) |
| atomic number | <chemistry> Symbol Z. The number of protons in the nucleus of an atom and also its characteristic atomic number. The atomic numbers of the known elements form a complete series from 1 (hydrogen) to 103 (lawrencium). (16 Dec 1997) |
| atomic theory | That chemical compounds are formed by the union of atoms in certain definite proportions; in its modern form, first advanced in 1803 by John Dalton. (05 Mar 2000) |
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