| pool | 1. A small and rather deep collection of (usually) fresh water, as one supplied by a spring, or occurring in the course of a stream; a reservoir for water; as, the pools of Solomon. "Charity will hardly water the ground where it must first fill a pool." (Bacon) "The sleepy pool above the dam." (Tennyson) 2. A small body of standing or stagnant water; a puddle. "The filthy mantled pool beyond your cell." Origin: AS. Pol; akin to LG. Pool, pohl, D. Poel, G. Pfuhl; cf. Icel. Pollr, also W. Pwll, Gael. Poll. To put together; to contribute to a common fund, on the basis of a mutual division of profits or losses; to make a common interest of; as, the companies pooled their traffic. "Finally, it favors the poolingof all issues." (U. S. Grant) Origin: Pooled; Pooling. 1. The stake played for in certain games of cards, billiards, etc.; an aggregated stake to which each player has contributed a snare; also, the receptacle for the stakes. 2. A game at billiards, in which each of the players stakes a certain sum, the winner taking the whole; also, in public billiard rooms, a game in which the loser pays the entrance fee for all who engage in the game; a game of skill in pocketing the balls on a pool table. This game is played variously, but commonly with fifteen balls, besides one cue ball, the contest being to drive the most balls into the pockets. "He plays pool at the billiard houses." (Thackeray) 3. In rifle shooting, a contest in which each competitor pays a certain sum for every shot he makes, the net proceeds being divided among the winners. 4. Any gambling or commercial venture in which several persons join. 5. A combination of persons contributing money to be used for the purpose of increasing or depressing the market price of stocks, grain, or other commodities; also, the aggregate of the sums so contributed; as, the pool took all the wheat offered below the limit; he put $10,000 into the pool. 6. A mutual arrangement between competing lines, by which the receipts of all are aggregated, and then distributed pro rata according to agreement. 7. An aggregation of properties or rights, belonging to different people in a community, in a common fund, to be charged with common liabilities. Pin pool, a variety of the game of billiards in which small wooden pins are set up to be knocked down by the balls. Pool ball, one of the coloured ivory balls used in playing the game at billiards called pool. <zoology> Pool snipe, the European redshank. Pool table, a billiard table with pockets. Origin: F. Poule, properly, a hen. See Pullet Alternative forms: poule. Source: Websters Dictionary (01 Mar 1998) |
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| Pool, Eugene | <person> U.S. Surgeon, 1874-1949. See: Pool's phenomenon, Pool-Schlesinger sign. (05 Mar 2000) |
| Pool-Schlesinger sign | In tetany, spasm both of the extensor muscles of the knee and of the calf muscles when the extended leg is flexed at the hip. Synonym: leg phenomenon, Pool-Schlesinger sign, Schlesinger's sign. In tetany, contraction of the arm muscles following the stretching of the brachial plexus by elevation of the arm above the head with the forearm extended, resembles the contraction resulting from stimulation of the ulnar nerve. Synonym: arm phenomenon. (05 Mar 2000) |
| Pool's phenomenon | In tetany, spasm both of the extensor muscles of the knee and of the calf muscles when the extended leg is flexed at the hip. Synonym: leg phenomenon, Pool-Schlesinger sign, Schlesinger's sign. In tetany, contraction of the arm muscles following the stretching of the brachial plexus by elevation of the arm above the head with the forearm extended, resembles the contraction resulting from stimulation of the ulnar nerve. Synonym: arm phenomenon. (05 Mar 2000) |
| storage pool disease | <disease> A form of congenital platelet functional defect that result in prolongation of the bleeding time. (27 Sep 1997) |
| swimming pool conjunctivitis | A non-specific red-eye that can be caused by pool chlorination, adenovirus, and rarely, Chlamydia. (05 Mar 2000) |
| swimming pool granuloma | Localised nodular skin inflammation (small reddish raised areas of skin) caused by a bacterium called mycobacterium marinum. Swimming pool granuloma is typically acquired by occupational or recreational exposure to salt or fresh water, often resulting from minor trauma during caring for aquariums. The diagnosis is suggested by the history of exposure and confirmed by culturing tissue specimens which yield the microscopic organism, mycobacterium marinum. The infection can be treated with a variety of antibiotics, including doxycycline, minocycline, clarithromycin, rifampin, and trimethoprim-sulfamethoxazole. Also called fish bowl granuloma. (12 Dec 1998) |
| marginal | Occurring at or very close to the margin. (09 Oct 1997) |
| marginal adaptation | <dentistry> The degree of proximity and interlocking of filling material to the wall of the cavity of a tooth. The term has come to be used synonymously with adaptation at the cavosurface margin. (12 Dec 1998) |
| marginal artery of colon | Artery formed by anastomoses between the right and left colic artery's; it passes downward from the left colic flexure to the aboral end of the pelvic colon. Synonym: artery of Drummond, Riolan's arc. (05 Mar 2000) |
| marginal artery of drummond | <radiology> Formed by, right and left br. Of middle colic a., and left and right colic aa., runs along mesenteric border of colon, supplies vasa recta (12 Dec 1998) |
| marginal band | A bundle of equatorially located microtubules that stabilise the biconvex shape of platelets and avian erythrocytes. They are unusual in that they do not derive from the centrosomal microtubule organising centre. (18 Nov 1997) |
| marginal blepharitis | Inflammation of the margins of the eyelids. Synonym: ciliary blepharitis, marginal blepharitis. Meibomian blepharitis, inflammation of the eyelid margin and the meibomian glands. (05 Mar 2000) |
| marginal corneal degeneration | Bilateral opacification and vascularization of the periphery of the cornea, progressing to formation of a gutter and ectasia. Synonym: ectatic marginal degeneration of cornea. (05 Mar 2000) |
| marginal crest | The rounded borders which form the mesial and distal margins of the occlusal surface of a tooth. Synonym: crista marginalis, marginal ridge. (05 Mar 2000) |