| BFO | balanced forearm orthosis; ball-bearing forearm orthosis; blood-forming organ |
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| LABV | left atrial ball valve |
| angoumois moth | <zoology> A small moth (Gelechia cerealella) which is very destructive to wheat and other grain. The larva eats out the inferior of the grain, leaving only the shell. Origin: So named from Angoumois in France. Source: Websters Dictionary (01 Mar 1998) |
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| v moth | <zoology> A common gray European moth (Halia vauaria) having a V-shaped spot of dark brown on each of the fore wings. Source: Websters Dictionary (01 Mar 1998) |
| pernyi moth | <zoology> A silk-producing moth (Attacus Pernyi) which feeds upon the oak. It has been introduced into Europe and America from China. Source: Websters Dictionary (01 Mar 1998) |
| moth | 1. <zoology> Any nocturnal lepidopterous insect, or any not included among the butterflies; as, the luna moth; Io moth; hawk moth. 2. <zoology> Any lepidopterous insect that feeds upon garments, grain, etc.; as, the clothes moth; grain moth; bee moth. See these terms under Clothes, Grain, etc. 3. <zoology> Any one of various other insects that destroy woolen and fur goods, etc, especially. The larvae of several species of beetles of the genera Dermestes and Anthrenus. Carpet moths are often the larvae of Anthrenus. See Carpet beetle, under Carpet, Dermestes, Anthrenus. 4. Anything which gradually and silently eats, consumes, or wastes any other thing. Moth blight, a clothes moth. <botany> Moth mullein, a common herb of the genus Verbascum (V. Blattaria), having large wheel-shaped yellow or whitish flowers. Source: Websters Dictionary (01 Mar 1998) |
| moth-eaten alopecia | Patchy hair loss of parietal and occipital regions of the scalp, characteristic of secondary syphilis. (05 Mar 2000) |
| moth patch | <dermatology> Melasma cholasma hepaticum a term formerly used to refer to circumscribed facial hyperpigmentation resembling melasma that may occur as a cutaneous manifestation of chronic liver disease. Origin: Gr. Chloazein = to be green (18 Nov 1997) |
| hawk moth | <zoology> Any moth of the family Sphingidae, of which there are numerous genera and species. They are large, handsome moths, which fly mostly at twilight and hover about flowers like a humming bird, sucking the honey by means of a long, slender proboscis. The larvae are large, hairless caterpillars ornamented with green and other bright colours, and often with a caudal spine. The larvae of several species of hawk moths feed on grapevines. The elm-tree hawk moth is Ceratomia Amyntor. See: sphinx, tobacco worm, tomato worm, tobacco hawk moth (Macrosila Carolina). Source: Websters Dictionary (01 Mar 1998) |
| io moth | <zoology> A large and handsome American moth (Hyperchiria Io), having a large, bright-coloured spot on each hind wing, resembling the spots on the tail of a peacock. The larva is covered with prickly hairs, which sting like nettles. Source: Websters Dictionary (01 Mar 1998) |
| isabella moth | <zoology> A common American moth (Pyrrharctia isabella), of an isabella colour. The larva, called woolly bear and hedgehog caterpillar, is densely covered with hairs, which are black at each end of the body, and red in the middle part. Source: Websters Dictionary (01 Mar 1998) |
| 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) |
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