| diaschisis | A sudden inhibition of function produced by an acute focal disturbance in a portion of the brain at a distance from the original seat of injury, but anatomically connected with it through fibre tracts. Origin: G. A splitting (05 Mar 2000) |
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| diascope | <instrument> A flat glass plate through which one can examine superficial skin lesions by means of pressure. Origin: G. Dia, through, + skopeo, to view (05 Mar 2000) |
| diascopy | Examination of superficial skin lesions with a diascope. Origin: G. Dia, through, + skopeo, to see (05 Mar 2000) |
| diaspore | <chemical> A hydrate of alumina, often occurring in white lamellar masses with brilliant pearly luster; so named on account of its decrepitating when heated before the blowpipe. Origin: From Gr. A scattering; through, asunder + to sow, scatter like seed: cf. F. Diaspore. Source: Websters Dictionary (01 Mar 1998) |
| diastalsis | The type of peristalsis in which a region of inhibition precedes the wave of contraction, as seen in the intestinal tract. Origin: G. An arrangement (05 Mar 2000) |
| diastaltic | Pertaining to diastalsis. (05 Mar 2000) |
| diastase | <physiology> A soluble, nitrogenous ferment, capable of converting starch and dextrin into sugar. The name is more particularly applied to that ferment formed during the germination of grain, as in the malting of barley; but it is also occasionally used to designate the amylolytic ferment contained in animal fluids, as in the saliva. Origin: Gr. Separation, fr, to stand apart; through +, to stand, set: cf. F. Diastase. Cf. Diastasis. Source: Websters Dictionary (01 Mar 1998) |
| diastasis | <surgery> A forcible of bones without fracture. Origin: NL. See Diastase. Source: Websters Dictionary (01 Mar 1998) |
| diastasis recti | Separation of rectus abdominis muscles away from the midline, sometimes seen during or following pregnancy. (05 Mar 2000) |
| diastasuria | The excretion of amylase (sometimes termed diastase) in the urine, especially increased amounts likely in acute pancreatitis. Synonym: diastasuria. (05 Mar 2000) |
| diastatic | <physiology> Relating to diastase; having the properties of diastase; effecting the conversion of starch into sugar. "The influence of acids and alkalies on the diastatic action of saliva." (Lauder Brunton) Origin: Gr. Separative. See Diastase. Source: Websters Dictionary (01 Mar 1998) |
| diastatic skull fracture | The traumatic separation of cranial bones at a suture line. (27 Sep 1997) |
| diastema | <dentistry> A space between two teeth. (08 Jan 1998) |
| diastematocrania | Congenital sagittal fissure of the skull. Origin: G. Diastema, an interval, + kranion, skull (05 Mar 2000) |
| diastematomyelia | <radiology> Longitudinal splitting of spinal cord at one or more levels, may have associated bony, cartilagenous or fibrous spur projecting through dura, distinguish from diplomyelia (true duplication of spinal cord) (12 Dec 1998) |