| black-jack | 1. <chemical> A name given by English miners to sphalerite, or zinc blende; called also false galena. See Blende. 2. Caramel or burnt sugar, used to colour wines, spirits, ground coffee, etc. 3. A large leather vessel for beer, etc. 4. <botany> The Quercus nigra, or barren oak. 5. The ensign of a pirate. Source: Websters Dictionary (01 Mar 1998) |
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| Rubinstein, Jack | <person> U.S. Child psychiatrist and paediatrician, *1925. See: Rubinstein-Taybi syndrome. (05 Mar 2000) |
| supple-jack | <botany> A climbing shrub (Berchemia volubilus) of the Southern United States, having a tough and pliable stem. A somewhat similar tropical American plant (Paullinia Curassavica); also, a walking stick made from its stem. "He was in form and spirit like a supple-jack, . . . Yielding, but tough; though he bent, he never broke." (W. Irving) This name is given to various plants of similar habit in different British colonies. Source: Websters Dictionary (01 Mar 1998) |
| jack | <marine biology> Young salmon, usually a male, that matures precociously. (12 Jan 1998) |
| amputation knife | A broad-bladed knife used primarily for transecting large muscles during major amputations. (05 Mar 2000) |
| Beer's knife | A triangular knife with a sharp point and one sharp edge, formerly used for incision for cataract. (05 Mar 2000) |
| valvotomy knife | A knife used in mitral or venous valvular surgery; also called valvulotome. (05 Mar 2000) |
| gamma knife | <radiobiology> A special multi-source irradiation machine which focus a high intesity of irradiation on a small area: it is used as local therapy in especially brain tumours. This is investigational and is not part of the routine array of cancer treatments. (16 Dec 1997) |
| gamma ray knife | A beam of high energy X-rays. See: radiosurgery. (05 Mar 2000) |
| cartilage knife | A very stiff scalpel-shaped knife used in cutting cartilage. Synonym: cartilage knife, ecchondrotome. Origin: chondro-+ G. Tome, cutting (05 Mar 2000) |
| cautery knife | A knife that sears while cutting, to diminish bleeding. (05 Mar 2000) |
| Graefe's knife | A narrow-bladed knife used in making a section of the cornea. (05 Mar 2000) |
| chemical knife | Term sometimes used for restriction endonuclease. (05 Mar 2000) |
| Merrifield knife | A long, narrow, triangularly shaped knife used in gingival surgery. (05 Mar 2000) |
| ring-knife | A circular or oval ring with internal cutting edge, on the model of the carpenter's spoke-shave, for shaving off tumours in the nasal and other cavities. Synonym: spoke-shave. (05 Mar 2000) |