Koch's bacillus

[kôks, kôKHs]
n.
  1. tubercle bacillus
  2. A gram-negative bacterium Vibrio cholerae that produces a soluble exotoxin that may be the causative agent of Asiatic cholera in humans.comma bacillus
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.