| bleb | <cell biology> Protrusion from the surface of a cell, usually approximately hemispherical, may be filled with fluid or supported by a meshwork of microfilaments. (18 Nov 1997) |
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| bleb vs. Bulla | <radiology> Bleb collection of air within layers of viscera pleura, bulla air-filled, thin-walled space within lung (destruction of alveoli), cyst congenital: bronchial or bronchogenic cyst (12 Dec 1998) |
| bleed | 1. To emit blood; to lose blood; to run with blood, by whatever means; as, the arm bleeds; the wound bled freely; to bleed at the nose. 2. To withdraw blood from the body; to let blood; as, Dr. A. Bleeds in fevers. 3. To lose or shed one's blood, as in case of a violent death or severe wounds; to die by violence. "Caesar must bleed." "The lamb thy riot dooms to bleed to-day." (Pope) 4. To issue forth, or drop, as blood from an incision. "For me the balm shall bleed." (Pope) 5. To lose sap, gum, or juice; as, a tree or a vine bleeds when tapped or wounded. 6. To pay or lose money; to have money drawn or extorted; as, to bleed freely for a cause. To make the heart bleed, to cause extreme pain, as from sympathy or pity. Origin: OE. Bleden, AS. Bldan, fr. Bld blood; akin to Sw. Bloda, Dan. Blode, D. Bloeden, G. Bluten. See Blood. 1. To let blood from; to take or draw blood from, as by opening a vein. 2. To lose, as blood; to emit or let drop, as sap. "A decaying pine of stately size, bleeding amber." (H. Miller) 3. To draw money from (one); to induce to pay; as, they bled him freely for this fund. Source: Websters Dictionary (01 Mar 1998) |
| bleeder | <medicine> One who, or that which, draws blood. One in whom slight wounds give rise to profuse or uncontrollable bleeding. Source: Websters Dictionary (01 Mar 1998) |
| bleeding | Emitting, or appearing to emit, blood or sap, etc.; also, expressing anguish or compassion. A running or issuing of blood, as from the nose or a wound; a hemorrhage; the operation of letting blood, as in surgery; a drawing or running of sap from a tree or plant. Source: Websters Dictionary (01 Mar 1998) |
| bleeding polyp | Synonym: vascular polyp. (05 Mar 2000) |
| bleeding time | <haematology> A test which measures the time it takes for small blood vessels to close off and bleeding to stop. Abnormal results can be seen in those with congenital or acquired platelet function disorders or thrombocytopenia. (27 Sep 1997) |
| blemish | Any mark of deformity or injury, whether physical or moral; anything; that diminishes beauty, or renders imperfect that which is otherwise well formed; that which impairs reputation. "He shall take two he lambs without blemish, and one ewe lamb of the first year without blemish." (Lev. Xiv. 10) "The reliefs of an envious man are those little blemishes and imperfections that discover themselves in an illustrious character." (Spectator) Synonym: Spot, speck, flaw, deformity, stain, defect, fault, taint, reproach, dishonor, imputation, disgrace. Source: Websters Dictionary (01 Mar 1998) |
| blench | A looking aside or askance. "These blenches gave my heart another youth." (Shak) Source: Websters Dictionary (01 Mar 1998) |
| blende | <chemical> A mineral, called also sphalerite, and by miners mock lead, false galena, and black-jack. It is a zinc sulphide, but often contains some iron. Its colour is usually yellow, brown, or black, and its luster resinous. A general term for some minerals, chiefly metallic sulphides which have a somewhat brilliant but nonmetallic luster. Origin: G, fr. Blenden to blind, dazzle, deceive, fr. Blind blind. So called either in allusion to its dazzling luster; or (Dana) because, though often resembling galena, it yields no lead. Cf. Sphalerite. Source: Websters Dictionary (01 Mar 1998) |
| blending inheritance | Galton's term for inheritance in which no component is conspicuous or obtrusive. (05 Mar 2000) |
| blennadenitis | Inflammation of the mucous glands. Origin: G. Blennos, mucus, + aden, gland, + -itis, inflammation (05 Mar 2000) |
| blennemesis | Rarely used term for vomiting of mucus. Origin: G. Blennos, mucus, + emesis, vomiting (05 Mar 2000) |
| blenniid | <zoology> Of, pertaining to, or resembling, the blennies. Origin: Blenny. Source: Websters Dictionary (01 Mar 1998) |
| blenno- | Blenn- Mucus. Origin: G. Blenna, blennos (05 Mar 2000) |