| ACGT | antibody-coated grid technique |
|---|---|
| GRID | gay-related immunodeficiency [syndrome] |
| GTI | grid tiler |
| PEG | Patient Evaluation Grid; percutaneous endoscopic gastrostomy; pneumoencephalogram, pneumoencephalogr... |
| CD | cadaver donor; canine distemper; canine dose; carbohydrate dehydratase; carbon dioxide; cardiac dise... |
| HGMF | hydrophobic grid membrane filter |
|---|---|
| CCD | Crossed Cerebellar Diaschisis |
| CRIE | Crossed Radioimmunoelectrophoresis |
| CIE | Crossed immuno-electrophoresis |
| CUD | Crossed-Uncrossed Difference |
| grid | An electric utility's system for distributing power. (05 Dec 1998) |
|---|---|
| grid connection | Joining a plant that generates electric power to a utility system so that electricity can flow in either direction between the utility system and the plant. (05 Dec 1998) |
| grid ratio | In a radiographic scatter-absorbing grid, the ratio of the height to the width of the gaps between lead strips; a higher grid ratio removes more scattered radiation but requires more careful X-ray tube positioning to avoid grid cutoff of the primary radiation beam. (05 Mar 2000) |
| Wetzel grid | Chart of growth, plotting height, weight, physical fitness and related aspects of young and adolescent children during growth. (05 Mar 2000) |
| focused grid | A grid in which the divergent beam of X-rays from a particular distance range will be parallel to the lead strips. (05 Mar 2000) |
| crossed adductor jerk | Contraction of the adductors of the thigh and inward rotation of the limb elicited by tapping the sole. Synonym: crossed adductor jerk. (05 Mar 2000) |
| crossed adductor reflex | Contraction of the adductors of the thigh and inward rotation of the limb elicited by tapping the sole. Synonym: crossed adductor jerk. (05 Mar 2000) |
| crossed anaesthesia | Anaesthesia of one side of the head and the other side of the body due to a brainstem lesion. (05 Mar 2000) |
| crossed aphasia | Aphasia in a right-handed person due to a solely right cerebral lesion. (05 Mar 2000) |
| crossed cylinders | A lens used in refraction to determine the strength and axis of a cylindrical lens to correct astigmatism; a combination of concave and convex cylinders of like power whose axes are at right angles to each other. (05 Mar 2000) |
| crossed embolism | Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolise) , they travel first to the right side of the heart and, normally, then to the lungs where they lodge. The lungs act as a filter to prevent the clots from entering the arterial circulation. However, when there is a hole in the wall between the two upper chambers of the heart (an atrial septal defect), a clot can crossparadoxically from the right to the left side of the heart, then pass into the arteries. Once in the arterial circulation, a clot can travel to the brain, block a vessel there, and cause a stroke (cerebrovascular accident). Because of the risk of stroke from crossed embolism, it is usually recommended that even small atrial septal defects be closed (repaired). Also called: paradoxical embolism. (12 Dec 1998) |
| crossed extension reflex | Extension of the contralateral hind limb when the paw of an animal is painfully stimulated or the central cut end of an afferent nerve, e.g., the peroneal, is stimulated; sometimes occurs in humans upon tapping the skin. (05 Mar 2000) |
| crossed eyes | <clinical sign> A deviation of the eye which the patient cannot overcome. The visual axes assume a position relative to each other different from that required by the physiological conditions. The various forms of strabismus are spoken of as tropias, their direction being indicated by the appropriate prefix, as cyclo tropia, esotropia, exotropia, hypertropia and hypotropia. Also called cast, heterotropia, manifest deviation and squint. Origin: Gr. Strabismos = a squinting (18 Nov 1997) |
| crossed fixation | In convergent strabismus, the use of the right inturned eye to look at objects to the left and the left inturned eye to look at objects to the right, in order to avoid ocular rotation. (05 Mar 2000) |
| crossed hemianesthesia | alternate hemianesthesia |
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