noun
definition
A single celled organism with cell walls but no nucleus or organelles.
Examples of bacterium in a Sentence
In ordinary arable soil there exist motile rod-like bacteria, Bacterium radicicola.
The bacterium attaches itself to the surfaces of red blood cells.
One bacterium might thus produce in twenty-four hours a number of segments amounting to many millions of millions.
Lister for isolating a pure culture of lactic acid bacterium.
For example, genes from the bacterium bacillus thuringiensis produce a toxin that kills certain insects.
The foam inside the camera was found to have a strain of the bacterium streptococcus mitis still living inside it.
Lister determined the number of bacteria present in a drop of the liquid under examination by counting, and then diluted this with a sufficient quantity of sterilized water so that each drop of the mixture should contain, on an average, less than one bacterium.
In all cases the important action is the binding of complement to the bacterium by means of the corresponding immune body; whether or not death of the bacterium occurs, will depend upon its susceptibility to the action of the particular complement, the latter acting like a toxin or digestive ferment.
This latter complement may not suit the immune body, that is, may not be fixed to the bacterium by means of it, or if the latter event does occur, may fail to bring about the death of the bacteria.
The development of all antagonistic substances which confer the special character on antimicrobic sera, as well as antitoxins, may be expressed as the formation of bodies with specific combining affinity for the organic substance introduced into the system - toxin, bacterium, red corpuscle, &c., as the case may be.
Around half the population carry the bacterium Helicobacter pylori which causes most cases.
The foam inside the camera was found to have a strain of the bacterium Streptococcus mitis still living inside it.
The bacterium, introduced into a normal stomach, has the ability to survive the acid pH because of an intense urease activity.
These actions prevent the bacterium from being attacked and destroyed by the white blood cells of the host (Gould, 1987).
When the immune system detects the infection, it begins to systematically destroy the red blood cells that carry the bacterium.
The bacterium can often be found in the bloodstream of healthy cats.
It is only when there is a weakness in the autoimmune system, such as with Feline Leukemia, that the bacterium is able to take over.
Since the bacterium disintegrates the cell wall of the red blood cell, it cannot be detected by culturing a blood sample.
A specific bacterium that lives in the soil produces a sugar by-product that is used to create selamectin.
The soil is harvested for the bacterium, which is grown for the sugar by-product under lab conditions.
This bacterium can be spread to the meat during the process of skinning and removing the entrails.
Most often, the genetic modification in question is the incorporation of genes from the bacterium Bacillus thuringiensis, or Bt for short.
Your goal is to thaw the meat quickly and cook it as fast as you can before the bacterium grows.
Goggles can block sharp instruments or glass, preservation chemicals used in dissections, bodily fluids, dust, splatters, bacterium, or flying objects-all things you are likely to find in one type of science class or lab or another.
It is thought that an infectious organism of some kind is the cause of Kawasaki disease, although no specific virus or bacterium has been identified as of 2004.
Bacteria-Singular, bacterium; tiny, one-celled forms of life that cause many diseases and infections.
A culture is used to learn what type of bacterium is causing infection.
Trachoma, also called granular conjunctivitis or Egyptian ophthalmia, is a contagious, chronic inflammation of the mucous membranes of the eyes, caused by the bacterium Chlamydia trachomatis.
The first stage is active infection of the conjunctiva by the bacterium C. trachomatis.
Whooping cough-An infectious disease of the respiratory tract caused by a bacterium, Bordetella pertussis.
Pseudomonas-A bacterium which can cause ulcers in contact lens wearers.
Early in the infection, the blood is far more likely to positively show a presence of the salmonella bacterium when a sample is grown on a nutrient substance (culture) for identification purposes.
Impetigo caused by the bacterium Staphylococcus aureus (also known as staph) affects children of all ages.
The medications given for lymphadenitis vary according to the bacterium or virus that causes it.
Cat scratches and bites are also capable of transmitting the Bartonella henselae bacterium, which can lead to cat-scratch disease, an unpleasant but usually not life-threatening illness.
The Hib vaccine is an injection that helps protect children from contracting infections due to Haemophilus influenzae type B (Hib), a bacterium that is capable of causing serious illness and potential death in children under age five.
This bacterium causes gonorrhea, a sexually transmitted infection of the genitals and urinary tract.
Cat-scratch disease (also called cat-scratch fever) is caused by the Bartonella henselae bacterium, which is found in cats around the world and is transmitted from cat to cat by fleas.
The bacterium, which remains in a cat's bloodstream for several months after infection, seems to be harmless to most cats, and normally an infected cat will not display any symptoms.
Bacteria-Singluar, bacterium; tiny, one-celled forms of life that cause many diseases and infections.
Cholera-An infection of the small intestine caused by a type of bacterium.
Microorganism-An organism that is too small to be seen with the naked eye, such as a bacterium, virus, or fungus.
Plague-A serious, potentially life-threatening infectious disease caused by the bacterium Yersinia pestis.
Typhoid fever-A severe infection caused by a bacterium, Salmonella typhi.
Tetanus-A potentially fatal infection caused by a toxin produced by the bacterium Clostridium tetani.
It is caused by toxins (poisons) produced by the bacterium Clostridium tetani.
Tetanus occurs when the body is infected with spores of the bacterium C. tetani.
This bacterium is found worldwide in soil and animal manure.
Pinta is a skin infection caused by the bacterium Treponema carateum, a relative of the bacterium that causes syphilis.
Pinta is caused by an infection with the bacterium Treponema carateum.