| ABE | acute bacterial endocarditis; American Board of Endodontics; botulism equine trivalent antitoxin |
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| BA | Bachelor of Arts; backache; bacterial agglutination; basilar artery; basion; benzyladenine; best amp... |
| BAIT | bacterial automated identification technique |
| BAP | bacterial alkaline phosphatase; Behavior Activity Profile; beta-amyloid peptide; blood-agar plate; b... |
| Bchl, bChl | bacterial chlorophyll |
| antibodies, bacterial | Immunoglobulins induced by substances elaborated by bacteria that have an antigenic activity. (12 Dec 1998) |
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| antigens, bacterial | Substances elaborated by bacteria that have antigenic activity. (12 Dec 1998) |
| atypical bacterial forms | Microorganisms that have undergone greater changes than normal in morphology, physiology, or cultural characteristics. (12 Dec 1998) |
| bacteria-free stage of bacterial endocarditis | Endocarditis described prior to the antibiotic era and presumably due to spontaneous healing of the bacterial vegetations. (05 Mar 2000) |
| bacterial | <microbiology> Bacteria are group of micro-organisms that are a single cell approximately 1 micron in transverse diameter. Some bacteria cause disease in man, requiring treatment with an antibiotic. (27 Sep 1997) |
| bacterial adhesion | Physicochemical property of fimbriated (fimbriae, bacterial) and non-fimbriated bacteria of attaching to cells, tissue, and nonbiological surfaces. It is a factor in bacterial colonization and pathogenicity. (12 Dec 1998) |
| bacterial allergy | The concept that the atopic kind of type I allergic reactions may be caused by bacterial allergens, the delayed type of skin test, so-called because of its early association with bacterial antigens (e.g., the tuberculin test). (05 Mar 2000) |
| bacterial antagonism | The inhibition of one bacterium by products of another. (05 Mar 2000) |
| bacterial capsule | A layer of slime of variable composition which covers the surface of some bacteria; capsulated cells of pathogenic bacteria are usually more virulent than cells without capsules because the former are more resistant to phagocytic action. (05 Mar 2000) |
| bacterial capsules | An envelope of loose gel surrounding a bacterial cell which is associated with the virulence of pathogenic bacteria. Some capsules have a well-defined border, whereas others form a slime layer that trails off into the medium. most capsules consist of relatively simple polysaccharides but there are some bacteria whose capsules are made of polypeptides. (12 Dec 1998) |
| bacterial cast | A cast in the urine composed of bacteria. (05 Mar 2000) |
| bacterial chemotaxis | <microbiology> The response of bacteria to gradients of attractants or repellents. In a gradient of attractant the probability of deviating from a smooth forward path is reduced if the bacterium is moving up gradient. Since the opposite is true if moving down gradient, the effect is to bias displacement towards the source of attractant. Strictly should perhaps be considered a klinokinesis with adaptation. (18 Nov 1997) |
| bacterial conjugation | <molecular biology> The process of transferring a certain plasmid of DNA known as the f plasmid (or sex plasmid) from bacteria individuals who have it (known as males) to bacteria individuals who do not already have it (known as females) by way of direct contact between the bacteria individuals called a conjugation bridge. Once transfer is completed, the female individual becomes a male individual and both parties have a copy of the F plasmid. (09 Oct 1997) |
| bacterial conjunctivitis | <pathology> A bacterial infection of a portion of the eye known as the conjunctiva. Common symptoms include redness of the eyes with a thick, often coloured purulent discharge. (27 Sep 1997) |
| bacterial cystitis | Bladder inflammation caused by bacteria. (05 Mar 2000) |