The Spirochaetaceae are a family of spirochete bacteria. Some species within this family are known to causes Lyme disease, relapsing fever, and other illnesses. ...
A family of spiral bacteria of the order spirochaetales. ... (12 Dec 1998) ... 
Type: Term Pronunciation: spī′rō-kē-tā′sē-ē Definitions: 1. A family of bacteria (order Spirochaetales) consisting of coarse, spiral cells, 30-50 mcm in length and possessing definite protoplasmic structures. These organisms occur in stagnant, fresh, or salt water and in the intestinal tracts of bivalve mol...
[n] - large coarsely spiral bacteria
family Spirochaetaceae noun large coarsely spiral bacteria; free-living in fresh or salt water or commensal in bodies of oysters