| Blatin's syndrome | The peculiar trembling or vibratory sensation felt on palpation of a hydatid cyst. Synonym: Blatin's syndrome, hydatid fremitus. (05 Mar 2000) |
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| Blatin, Marc | <person> French physician, *1878. See: Blatin's syndrome. (05 Mar 2000) |
| Blatta | A genus of insects (family Blattidae) that includes the abundant oriental cockroach, Blatta orientalis. The dried insect yields antihydropin, a diuretic principle. Origin: L. Cockroach (05 Mar 2000) |
| Blattella | A genus of cockroaches, (family Blattidae) that includes Blattella germanica, the German cockroach or croton bug, probably the most familiar and widespread of the cockroaches. Origin: L. Blatta, cockroach (05 Mar 2000) |
| Blattidae | A family of insects (order Blattaria) consisting of over 4,000 species of cockroaches, largely tropical but worldwide in distribution, including a number of abundant pests of households, kitchens, and institutions or facilities, wherever food is present; noxious wherever found, yet not positively incriminated in natural transmission of pathogenic organisms to man. Common household pests include the German cockroach, Blattella germanica, the American cockroach, Periplaneta americana, and the oriental cockroach, Blatta orientalis. Origin: L. Blatta, cockroach (05 Mar 2000) |