| Ducrey, Augusto | <person> Italian dermatologist, 1860-1940. See: Ducrey's bacillus, Ducrey test. (05 Mar 2000) |
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| duct | <anatomy> A passage with well defined walls, especially a tube for the passage of excretions or secretions. Synonym: ductus. Origin: L. Ductus from ducere = to draw or lead (18 Nov 1997) |
| duct of bulbourethral gland | The long slender duct on each side passing down through the inferior fascia of the urogenital diaphragm to enter the bulb of the penis and course forward 2 or 3 cm before terminating in the urethra. Synonym: ductus glandulae bulbourethralis. (05 Mar 2000) |
| duct of epididymis | A convoluted tube into which the efferent ductules open and which itself terminates in the ductus deferens. Synonym: ductus epididymidis. (05 Mar 2000) |
| duct of sweat glands | The superficial portion of the sweat gland that passes through the corium and epidermis, opening on the surface by the porus sudoriferus or sweat pore. Synonym: ductus sudoriferus, sudoriferous duct, sweat duct. (05 Mar 2000) |
| duct papilloma | A small, often nonpalpable, benign papilloma arising in a lactiferous duct and frequently causing bleeding from the nipple. Synonym: duct papilloma. (05 Mar 2000) |
| ductal | Relating to a duct. (05 Mar 2000) |
| ductal aneurysm | Aneurysm of the patent ductus arteriosus, occurs either in infants or adults. (05 Mar 2000) |
| ductal carcinoma | <tumour> A carcinoma derived from epithelium of ducts, e.g., in the breast or pancreas. (05 Mar 2000) |
| ductal carcinoma in situ | <oncology, tumour> A cancer inside the ducts of breast that has not grown through the wall of the duct into the surrounding tissues. Sometimes referred to as a precancer. Good prognosis is involved with in situ cancers. (09 Oct 1997) |
| ductal hyperplasia | Hyperplasia characterised by intraductal proliferation of epithelial cells, e.g., in the breast. (05 Mar 2000) |
| ductal papilloma | <oncology, tumour> Small noncancerous finger-like growths in the mammary ducts that may cause a bloody nipple discharge. Commonly found in women 45 to 50 years of age. (09 Oct 1997) |
| ductile | Denoting the property of a material that allows it to be bent, drawn out (as a wire), or otherwise deformed without breaking. Origin: L. Ductilis, capable of being led or drawn (05 Mar 2000) |
| ductin | <protein> Name for the 16 kD transmembrane subunit of the V-type ATPase, reflecting a controversial) view that it may be a multifunctional transmembrane pore protein, also involved (for example) in gap junction formation. See: connexin. (18 Nov 1997) |
| duction | 1. The act of leading, bringing, conducting. 2. In ophthalmology, ocular rotations with reference to one eye; usually additionally designating direction of movement of the eye; e.g., rotation toward the nose, adduction; toward the temple, abduction; upward, supra-or sursumduction; downward, deorsumduction; of the upper pole of one cornea, cycloduction; of the upper pole of one cornea outward, excycloduction; of the upper pole of one cornea inward, incycloduction. Origin: L. Duco, to lead (05 Mar 2000) |