| BFO | balanced forearm orthosis; ball-bearing forearm orthosis; blood-forming organ |
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| LABV | left atrial ball valve |
| fungous | 1. Of the nature of fungi; spongy. 2. Growing suddenly, but not substantial or durable. Origin: L. Fungosus: cf. F. Fungueux. Source: Websters Dictionary (01 Mar 1998) |
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| fungous foot | 1. A chronic infection involving the feet and characterised by the formation of localised lesions with tumefactions and multiple draining sinuses. The exudate contains granules that may be yellow, white, red, brown, or black, depending upon the causative agent. Mycetoma is caused by two principal groups of microorganisms: A. Actinomycotic mycetoma is caused by actinomycetes, including species of Streptomyces, Actinomadurae, and Nocardia. B. Eumycotic mycetoma is caused by true fungi, including species of Madurella, Exophiala, Pseudallescheria, Curvularia, Neotestudina, Pyrenochaeta, Aspergillus, Leptosphaeria, Plemodomus, Polycytella, Fusarium, Phialophora, Corynespora, Cylindrocarpon, Pseudochaetosphaeronema, Bipolaris, and Acremonium. Synonym: fungous foot, Madura boil, Madura foot, maduromycosis. 2. Any tumour with draining sinuses produced by filamentous fungi. (05 Mar 2000) |
| ball | 1. Any round or roundish body or mass; a sphere or globe; as, a ball of twine; a ball of snow. 2. A spherical body of any substance or size used to play with, as by throwing, knocking, kicking, etc. 3. A general name for games in which a ball is thrown, kicked, or knocked. See Baseball, and Football. 4. Any solid spherical, cylindrical, or conical projectile of lead or iron, to be discharged from a firearm; as, a cannon ball; a rife ball; often used collectively; as, powder and ball. Spherical balls for the smaller firearms are commonly called bullets. 5. A flaming, roundish body shot into the air; a case filled with combustibles intended to burst and give light or set fire, or to produce smoke or stench; as, a fire ball; a stink ball. 6. A leather-covered cushion, fastened to a handle called a ballstock; formerly used by printers for inking the form, but now superseded by the roller. 7. A roundish protuberant portion of some part of the body; as, the ball of the thumb; the ball of the foot. 8. <veterinary> A large pill, a form in which medicine is commonly given to horses; a bolus. 9. The globe or earth. "Move round the dark terrestrial ball." (Addison) Ball and socket joint, a joint in which a ball moves within a socket, so as to admit of motion in every direction within certain limits. Ball bearings, a mechanical device for lessening the friction of axle bearings by means of small loose metal balls. Ball cartridge, a cartridge containing a ball, as distinguished from a blank cartridge, containing only powder. Ball cock, a faucet or valve which is opened or closed by the fall or rise of a ball floating in water at the end of a lever. Ball gudgeon, a pivot of a spherical form, which permits lateral deflection of the arbor or shaft, while retaining the pivot in its socket. Knight. Ball lever, the lever used in a ball cock. Ball of the eye, the eye itself, as distinguished from its lids and socket; formerly, the pupil of the eye. Ball valve, a sort of iron ore, found in loose masses of a globular form, containing sparkling particles. Three balls, or Three golden balls, a pawnbroker's sign or shop. Synonym: See Globe. Origin: OE. Bal, balle; akin to OHG. Balla, palla, G. Ball, Icel. Bollr, ball; cf. F. Balle. Cf. 1st Bale, Pallmall. 1. <chemistry> To heat in a furnace and form into balls for rolling. 2. To form or wind into a ball; as, to ball cotton. Source: Websters Dictionary (01 Mar 1998) |
| ball-and-socket joint | A multiaxial synovial joint in which a more or less extensive sphere on the head of one bone fits into a rounded cavity in the other bone, as in the hip joint. Synonym: articulatio spheroidea, articulatio cotylica, cotyloid joint, enarthrodial joint, enarthrosis, socket joint, spheroid articulation, spheroid joint. (05 Mar 2000) |
| ball of the foot | The padded portion of the sole, at the anterior extremity of the heads of the metatarsals, upon which the weight rests when the heel is raised. (05 Mar 2000) |
| Ball, Sir Charles | <person> Irish surgeon, 1851-1916. See: Ball's operation. (05 Mar 2000) |
| Ball's operation | Division of the sensory nerve trunks supplying the anus, for relief of pruritus ani. (05 Mar 2000) |
| ball thrombus | An antemortem thrombus found in the left or right atrium usually in certain cases of mitral stenosis. (05 Mar 2000) |
| ball valve | Any of a variety of prosthetic cardiac valve's comprised of a ball within a retaining cage affixed to the orifice; when appropriately sized, used in aortic, mitral, or tricuspid position. (05 Mar 2000) |
| ball valve action | The intermittent blockage of a tube or outlet of a cavity by some object or material that permits passage in one direction but not in the other. (05 Mar 2000) |
| ball-valve thrombus | Ball thrombus intermittently occluding the mitral or tricuspid orifice. (05 Mar 2000) |
| ball variance | Swelling and changes in shape and consistency of the ball in a ball-valve prosthesis, especially in one replacing the aortic valve. (05 Mar 2000) |
| chondrin ball | One of the globular masses formed by a group of cells enclosed in a capsule, in hyaline cartilage. (05 Mar 2000) |
| wool ball | A trichophytobezoar formed chiefly of wool and vegetable matter in the stomach of sheep. (05 Mar 2000) |
| hair ball | A hair cast in the stomach or intestinal tract, common in cats. Synonym: hair ball, pilobezoar. Origin: tricho-+ bezoar (05 Mar 2000) |
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