timothy hay bacillus

[tĭmə-thē hā]

n.

An aerobic, gram-negative, nonmotile bacterium, Mycobacterium phlei, that is found in soil and dust and on plants.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.