| CPD | calcium pyrophosphate deposition; cephalopelvic disproportion; cerebelloparenchymal disorder; childh... |
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| CS | calf serum; campomelic syndrome; carcinoid syndrome; cardiogenic shock; caries-susceptible; carotid ... |
| CU | cardiac unit; casein unit; cause unknown or undetermined; chymotrypsin unit; clinical unit; color un... |
| CUS | carotid ultrasound examination; catheterized urine specimen; contact urticaria syndrome |
| EACD | eczematous allergic contact dermatitis |
| contact allergy | A delayed type IV allergic reaction of the skin with varying degrees of erythema, oedema, and vesiculation resulting from cutaneous contact with a specific allergen. Synonym: contact allergy. (05 Mar 2000) |
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| contact area | That part of the proximal surface of a tooth which touches the adjacent tooth mesially or distally. Synonym: contact point, point of proximal contact. (05 Mar 2000) |
| contact ceptor | A nerve ceptor in the surface layer of skin or mucous membrane by means of which impulses contributed by direct physical impact are received. (05 Mar 2000) |
| contact cheilitis | Inflammation of the lips resulting from contact with a primary irritant or specific allergen, including ingredients of lipsticks. (05 Mar 2000) |
| contact dermatitis | <pathology> A type of immune-mediated inflammatory skin rash that results from an allergy to a particular substance (for example jewelry dermatitis, poison ivy, neomycin ointment, etc.). (27 Sep 1997) |
| contact following | Behaviour shown by individual slime mould cells when they join a stream moving towards the aggregating centre. Contact sites A at front and rear of cell may be involved in Dictyostelium. (18 Nov 1997) |
| contact guidance | Directed locomotory response of cells to an anisotropy of the environment, for example the tendency of fibroblasts to align along ridges or parallel to the alignment of collagen fibres in a stretched gel. (18 Nov 1997) |
| contact hypersensitivity | <pathology> A type of immune-mediated inflammatory skin rash that results from an allergy to a particular substance (for example jewelry dermatitis, poison ivy, neomycin ointment, etc.). (27 Sep 1997) |
| contact illumination | Illumination of the eye by means of an instrument in contact with the cornea or bulbar conjunctiva. Critical illumination, the precise focusing of the light source directly upon the object being examined. Dark-field illumination, a procedure in which a black circular shield is used to block the majority of the vertically directed rays of light (e.g., the field is dark), and a circumferential, suitably angled, mirrored surface is used to direct the peripheral rays horizontally against the object, thereby reflecting the light vertically through the objective lens and along the optical axis; thus, the object is well illuminated in a contrasting dark background. Synonym: dark-ground illumination. (05 Mar 2000) |
| contact induced spreading | The response in which contact between two epithelial cells leads to a stabilised contact and the increased spreading of the cells so that the area covered is greater than that covered by the two cells in isolation. (18 Nov 1997) |
| contact lens | A lens that fits over the cornea and sclera or cornea only; used to correct refractive errors. (05 Mar 2000) |
| contact lenses | Curved shells of glass or plastic applied directly over the globe or cornea to correct refractive errors. (12 Dec 1998) |
| contact lenses, extended-wear | Hydrophilic contact lenses worn for an extended period or permanently. (12 Dec 1998) |
| contact lenses, hydrophilic | Soft, supple contact lenses made of plastic polymers which interact readily with water molecules. Many types are available, including continuous and extended-wear versions, which are gas-permeable and easily sterilised. (12 Dec 1998) |
| contact lens solutions | Sterile solutions used to clean and disinfect contact lenses. (12 Dec 1998) |