nanobacterium(redirected from Nannobacterium)
Also found in: Medical.
n. pl. na·no·bac·te·ri·a (-tîr′ē-ə)
A calcified, crystalline particle smaller than 200 nanometers in diameter (the diameter of the smallest bacteria), hypothesized to be a self-replicating microorganism that can cause pathogenic calcification, as in arteriosclerosis and kidney stones.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.