| staggers | 1. A form of decompression sickness in which vertigo, mental confusion, and muscular weakness are the chief symptoms. 2. A disease in sheep, marked by swaying and uncertain gait, caused by the presence of the larva of the tapeworm Multiceps multiceps in the brain, or by other cerebral lesions. Synonym: gid. (05 Mar 2000) |
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| staggerwort | <botany> A kind of ragwort (Senecio Jacobaea). Source: Websters Dictionary (01 Mar 1998) |
| staghorn calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| staghound | <zoology> A large and powerful hound formerly used in hunting the stag, the wolf, and other large animals. The breed is nearly extinct. Source: Websters Dictionary (01 Mar 1998) |
| staging | Staging of breast cancer is based on the TNM Classification which classifies the size, site and spread of the disease.Therapeutic decisions are formulated in part according to staging (they are formulated primarily according to lymph node status and ER and PR receptor levels in the tumourous tissue, refer definition of ER and PR in this dictionary). The numbers I, II, III and IV are used to denote the stages and each number refers to a possible combination of TNM factors. For example: a Stage I breast cancer is defined by the TMN group: T1, N0, M0 which mean:T1 - Tumour is 2cm or less in diameter, N0 - No regional lymph node metastasis, M0 - No distant metastasis. A complete outline of TMN and Staging is available from PDQ, for which refer to the resource centre's listing of information services. (16 Dec 1997) |
| stagnant | 1. That stagnates; not flowing; not running in a current or steam; motionless; hence, impure or foul from want of motion; as, a stagnant lake or pond; stagnant blood in the veins. 2. Not active or brisk; dull; as, business in stagnant. "That gloomy slumber of the stagnant soul." (Johnson) "For him a stagnant life was not worth living." (Palfrey) Origin: L. Stagnans, -antis, p.pr. Of stagnare. See Stagnate. Source: Websters Dictionary (01 Mar 1998) |
| stagnant anoxia | Stagnant hypoxia severe enough to result in the absence of oxygen in tissues. (05 Mar 2000) |
| stagnant hypoxia | Tissue hypoxia characterised not by tissue oligaemia (tissue blood volume being normal or even increased), but by intravascular stasis due to impairment of venous outflow or (in some instances) to decreased arterial inflow. (05 Mar 2000) |
| stagnate | 1. To cease to flow; to be motionless; as, blood stagnates in the veins of an animal; hence, to become impure or foul by want of motion; as, air stagnates in a close room. 2. To cease to be brisk or active; to become dull or inactive; as, commerce stagnates; business stagnates. "Ready-witted tenderness . . . Never stagnates in vain lamentations while there is any room for hope." (Sir W. Scott) Origin: L. Stagnatus, p.p. Of stagnare to stagnate, make stagnant, from stagnum a piece of standing water. See Stank a pool, and cf. Stanch. Source: Websters Dictionary (01 Mar 1998) |
| stagnation | 1. The condition of being stagnant; cessation of flowing or circulation, as of a fluid; the state of being motionless; as, the stagnation of the blood; the stagnation of water or air; the stagnation of vapors. 2. The cessation of action, or of brisk action; the state of being dull; as, the stagnation of business. Origin: Cf. F. Stagnation. Source: Websters Dictionary (01 Mar 1998) |
| stagnation mastitis | Painful distention of the breast occurring during the latter days of pregnancy and the first days of lactation. Synonym: caked breast. (05 Mar 2000) |
| stagworm | <zoology> The larve of any species of botfly which is parasitic upon the stag, as oestrus, or Hypoderma, actaeon, which burrows beneath the skin, and Cephalomyia auribarbis, which lives in the nostrils. Source: Websters Dictionary (01 Mar 1998) |
| Stahl's ear | A deformed external ear, in which the fossa ovalis and upper portion of the scaphoid fossa are covered by the helix; regarded as a stigma of degenerate constitution. (05 Mar 2000) |
| Stahl, Friedrich | <person> German physician, 1811-1873. See: Stahl's ear. (05 Mar 2000) |
| Stahl, George | <person> German physician and chemist, 1660-1734. He promulgated the phlogiston theory. See: phlogiston. (05 Mar 2000) |