from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various rod-shaped, spore-forming, aerobic bacteria of the genus Bacillus that often occur in chains and include B. anthracis, the causative agent of anthrax.
- n. Any of various bacteria, especially a rod-shaped bacterium.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various rod-shaped, spore-forming aerobic bacteria in the genus Bacillus, some of which cause disease.
from the GNU version of the Collaborative International Dictionary of English
- n. A variety of bacterium; a microscopic, rod-shaped vegetable organism.
from The Century Dictionary and Cyclopedia
- n. In anatomy, a little rod or rod-like body, as one of the rods of the retina.
- n. An individual of the genus Bacillus.
- n. [capitalized] A so-called genus of the microscopical vegetable organisms known as bacteria, having the form of very slender straight filaments, short or of moderate length, and consisting of one or more elongated cylindrical joints.
- n. [capitalized] In entomology, a genus of orthopterous gressorial insects, of the family Phasmidæ, the walking-sticks.
- n. Medicine made up into a long round figure like a stick.
- n. In sponges, a microstrongyle; a form of spicule.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
Late Latin, diminutive of Latin baculum, rod; see bak- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin bacillus ("little staff, wand"). (Wiktionary)