wordswarm.net: free dictionary lookup
Wordswarms From Years Past


13-Letter Words
12-Letter Words
11-Letter Words
10-Letter Words
9-Letter Words
8-Letter Words
7-Letter Words
6-Letter Words
5-Letter Words
4-Letter Words
3-Letter Words


Adjacent Words

bacteriophage
bacteriophagic
bacteriophagous
bacteriophagy
bacteriorhodopsin
Bacterioscopic
Bacterioscopist
Bacterioscopy
bacteriostasis
bacteriostat
bacteriostatic
bacterise
Bacterium anthracis
Bacterium lacticum or lactis
Bacterium lactis
Bacterium ureae
bacteriuria
bacterization
bacterize
bacteroid
Bacteroidaceae
bacteroidal
Bacteroides
Bactra
Bactria
Bactrian

bacterium definitions

WordNet (r) 3.0 (2005)

n
1: (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants [syn: bacteria, bacterium]

Merriam Webster's

noun (plural bacteria) Etymology: New Latin, from Greek bakt?rion staff Date: circa 1849 any of a domain (Bacteria) of prokaryotic round, spiral, or rod-shaped single-celled microorganisms that may lack cell walls or are gram-positive or gram-negative if they have cell walls, that are often aggregated into colonies or motile by means of flagella, that typically live in soil, water, organic matter, or the bodies of plants and animals, that are usually autotrophic, saprophytic, or parasitic in nutrition, and that are noted for their biochemical effects and pathogenicity; broadly prokaryote compare archaea, eukaryote

Oxford Reference Dictionary

n. (pl. bacteria) a member of a large group of unicellular micro-organisms lacking organelles and an organized nucleus, some of which can cause disease. Derivatives: bacterial adj. Etymology: mod.L f. Gk bakterion dimin. of baktron stick

Webster's 1913 Dictionary

Bacterium Bac*te"ri*um, n.; pl. Bacteria. [NL., fr. Gr. ?, ?, a staff: cf. F. bact['e]rie. ] (Biol.) A microscopic vegetable organism, belonging to the class Alg[ae], usually in the form of a jointed rodlike filament, and found in putrefying organic infusions. Bacteria are destitute of chlorophyll, and are the smallest of microscopic organisms. They are very widely diffused in nature, and multiply with marvelous rapidity, both by fission and by spores. Certain species are active agents in fermentation, while others appear to be the cause of certain infectious diseases. See Bacillus.

Collin's Cobuild Dictionary

Bacterium is the singular of bacteria.



comments powered by Disqus

Wordswarm.net: Look up a word or phrase

 


wordswarm.net: free dictionary lookup