| adiabatic | <radiobiology> Not involving an exchange of heat between the system said to be adiabatic and the rest of the universe. (09 Oct 1997) |
|---|---|
| adiabatic compression | <radiobiology> Compression (of a gas, plasma, etc.) not accompanied by gain or loss of heat from outside the system. For a plasma in a magnetic field, a compression slow enough that the magnetic moment and other adiabatic invariants of the plasma particles may be taken as constant. (09 Oct 1997) |
| adiabatic invariant | <radiobiology> Characteristic parameters which do not change as a physical system slowly evolves, the most commonly used one in plasma physics is the magnetic moment of a charged particle spiraling around a magnetic field line. (09 Oct 1997) |
| adiabatic process | <chemistry> A process in which the system does not exchange heat with the surroundings. (15 Jan 1998) |
| adiactinic | <chemistry> Not transmitting the actinic rays. Origin: Pref. A- not + diactinic. Source: Websters Dictionary (01 Mar 1998) |
| adiadochocinesis | Inability to perform rapid alternating movements. One of the clinical manifestations of cerebellar dysfunction. See: dysdiadochokinesia. Compare: diadochokinesia. Synonym: adiadochocinesia, adiadochocinesis, dysdiadochokinesis. Origin: G. A-priv. + diadochos, successive, + kinesis, movement (05 Mar 2000) |
| adiadochokinesis | Inability to perform rapid alternating movements. One of the clinical manifestations of cerebellar dysfunction. See: dysdiadochokinesia. Compare: diadochokinesia. Synonym: adiadochocinesia, adiadochocinesis, dysdiadochokinesis. Origin: G. A-priv. + diadochos, successive, + kinesis, movement (05 Mar 2000) |
| adiantum | <botany> A genus of ferns, the leaves of which shed water; maidenhair. Also, the black maidenhair, a species of spleenwort. Origin: L, fr. Gr, maidenhair; priv. + to wet. Source: Websters Dictionary (01 Mar 1998) |
| adiaphoresis | <clinical sign> Absence of sweat. Can be found under the eye in Horner's Syndrome. (12 Nov 1997) |
| adiaphoretic | 1. Relating to, or characterised by, anhidrosis. Synonym: antiperspirant. 3. Denoting a reduction or absence of sweat glands, characteristic of congenital ectodermal defect and anhidrotic ectodermal dysplasia. Synonym: adiaphoretic, anidrotic. (05 Mar 2000) |
| adiaphoria | Failure to respond to stimulation after a series of previously applied stimuli. Origin: G. A-priv. + dia, through, + phoros, bearing (05 Mar 2000) |
| adiaphorous | 1. Indifferent or neutral. 2. <medicine> Incapable of doing either harm or good, as some medicines. Origin: Gr.; priv. + different; through + to bear. Source: Websters Dictionary (01 Mar 1998) |
| adiaspiromycosis | A rare pulmonary mycosis of humans and of rodents and other animals that dig in soil or are aquatic, caused by Emmonsia parva. (05 Mar 2000) |
| adiaspore | A fungus spore which, when produced in the lungs of an animal or incubated in vitro at elevated temperatures, increases greatly in size without eventual reproduction or replication. Origin: G. A-priv. + dia, through, + sporos, seed (05 Mar 2000) |
| adiastole | Absence or imperceptibility of the diastolic movement of the heart; diastolic ventricular functional abnormality. Origin: G. A-priv. + diastole, dilation (05 Mar 2000) |