| black hole | A dungeon or dark cell in a prison; a military lock-up or guardroom; now commonly with allusion to the cell (the Black Hole) in a fort at Calcutta, into which 146 English prisoners were thrust by the nabob Suraja Dowla on the night of June 20, 17656, and in which 123 of the prisoners died before morning from lack of air. "A discipline of unlimited autocracy, upheld by rods, and ferules, and the black hole." (H. Spencer) Source: Websters Dictionary (01 Mar 1998) |
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| golf-hole ureteral orifice | A retracted funnel-shaped condition of the ureteral orifice in the wall of the bladder, due often to tuberculosis or a secondary sclerosis of the ureter. (05 Mar 2000) |
| hole | 1. A hollow place or cavity; an excavation; a pit; an opening in or through a solid body, a fabric, etc.; a perforation; a rent; a fissure. "The holes where eyes should be." (Shak) "The blind walls Were full of chinks and holes." (Tennyson) "The priest took a chest, and bored a hole in the lid." (2 Kings xii. 9) 2. An excavation in the ground, made by an animal to live in, or a natural cavity inhabited by an animal; hence, a low, narrow, or dark lodging or place; a mean habitation. "The foxes have holes, . . . But the Son of man hath not where to lay his head." (Luke ix. 58) Synonym: Hollow, concavity, aperture, rent, fissure, crevice, orifice, interstice, perforation, excavation, pit, cave, den, cell. Hole and corner, clandestine, underhand. "The wretched trickery of hole and corner buffery. " . Hole board, a board having holes through which cords pass which lift certain warp threads. Synonym: compass board. Origin: OE. Hol, hole, AS. Hol, hole, cavern, from hol, a, hollow; akin to D. Hol, OHG. Hol, G. Hohl, Dan.huul hollow, hul hole, Sw. Hal, Icel. Hola; prob. From the root of AS. Helan to conceal. See Hele, Hell, and cf. Hold of a ship. (01 Mar 1998) |
| hole in retina | A break in the continuity of the sensory retina, permitting separation between the retinal pigment epithelium and sensory retina. (05 Mar 2000) |
| abdominal zones | The topographical subdivisions of the abdomen; based on subdividing the abdomen by the transpyloric, interspinous and midclavicular planes; including the right and left hypochondriac, right and left lateral, right and left inguinal, and the unpaired epigastric, umbilical and pubic regions. Synonym: regiones abdominis, abdominal zones. (05 Mar 2000) |
| Head's zones | Bands of cutaneous hyperesthesia associated with acute or chronic inflammation of the viscera. Synonym: Head's zones, tender lines, tender zones. (05 Mar 2000) |
| tender zones | Bands of cutaneous hyperesthesia associated with acute or chronic inflammation of the viscera. Synonym: Head's zones, tender lines, tender zones. (05 Mar 2000) |
| zones of discontinuity | Concentric zone's of varying optical density in the lens of the eye, as seen in slitlamp biomicroscopy. (05 Mar 2000) |
| Looser's zones | Radiolucent bands in the cortex of a bone; usually indicates osteomalacia. Synonym: Looser's zones. (05 Mar 2000) |
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