Spiril'lum

[L. dim. of spira, a, coil.] genus of Spirillaceee containing rigid cells with polar tufts of flagella. S. car'teri, Spirochceta carter i. S. chol'erae asiat'ica:, comma bacillus, a motile, flagellated, gram-negative s., the specific cause of Asiatic cholera. S. dut'toui, Spirochceta dutioni. S. metchniko'vi, s. of Gamaleia. S. no'vyi, Spirochceta novyi. S. obermei'eri, Spirochceta obermeieri. a. of Den'ecke, Vibrio tyrogenum, an organism resembling somewhat the comma bacillus, found in old cheese, s. of Fink'ler and Pri'or, Vibrio proteus, an organism resembling the comma bacillus, found in the feces in cholera nostras, s. of Gamale'ia, Vibrio metchnikovi, an organism resembling the comma bacillus, found in the intestines of chickens with apparent chicken-cholera.