Definition of bacterium
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Bacterium (n.) A microscopic vegetable organism, belonging to the class Algae, 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
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Coccobacterium ::
Coccobacterium (n.) One of the round variety of bacteria, a vegetable organism, generally less than a thousandth of a millimeter in diameter..
Anthrax ::
Anthrax (n.) An infectious disease of cattle and sheep. It is ascribed to the presence of a rod-shaped bacterium (Bacillus anthracis), the spores of which constitute the contagious matter. It may be transmitted to man by inoculation. The spleen becomes greatly enlarged and filled with bacteria. Called also splenic fever..
Pathogenic ::
Pathogenic (a.) Of or pertaining to pathogeny; producting disease; as, a pathogenic organism; a pathogenic bacterium..
Pathogene ::
Pathogene (n.) One of a class of virulent microorganisms or bacteria found in the tissues and fluids in infectious diseases, and supposed to be the cause of the disease; a pathogenic organism; a pathogenic bacterium; -- opposed to zymogene..
Bacterium ::
Bacterium (n.) A microscopic vegetable organism, belonging to the class Algae, 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
Streptococci ::
Streptobacteria (n. pl.) A so-called variety of bacterium, consisting in reality of several bacteria linked together in the form of a chain..
Pyocyanin ::
Pyocyanin (n.) A blue coloring matter found in the pus from old sores, supposed to be formed through the agency of a species of bacterium (Bacillus pyocyaneus)..
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