| Pfeiffer's bacillus | <bacteria> Bacterium sometimes associated with influenza virus infections, causes pneumonia and meningitis. (18 Nov 1997) |
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| Pfeiffer's blood agar | Solid agar with a few drops of human blood smeared on the surface. (05 Mar 2000) |
| Pfeiffer's phenomenon | The alteration and complete disintegration of cholera vibrios when introduced into the peritoneal cavity of an immunised guinea pig, or into that of a normal one if immune serum is injected at the same time; extended to include bacteriolysis in general. (05 Mar 2000) |
| Pfeiffer's syndrome | Acrocephalosyndactyly with broad short thumbs and great toes, often with duplication (polydactyly) of the great toes and variable syndactyly of other digits; autosomal dominant inheritance. Synonym: Pfeiffer's syndrome. (05 Mar 2000) |
| Pfeiffer, Richard | <person> German physician, 1858-1945. See: Pfeifferella, Pfeiffer's blood agar, Pfeiffer's bacillus, Pfeiffer's phenomenon, Pfeiffer's syndrome. (05 Mar 2000) |
| Pfeifferella | An obsolete genus of bacteria, the type species of which, Pfeifferella mallei, formerly was placed in the genus Actinobacillus and presently is placed in the genus Pseudomonas. Origin: R. F. J. Pfeiffer (05 Mar 2000) |