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The Collaborative International Dictionary

Bacterial \Bac*te"ri*al\, a. (Biol.) Of, pertaining to, or caused by bacteria.

Douglas Harper's Etymology Dictionary

1869, from bacteria + -al (1).


a. (context microbiology English) Of, relating to, or caused by bacteria.


adj. relating to or caused by bacteria; "bacterial infection"


Usage examples of "bacterial".

The greater the bacterial concentration, the lighter and more opaque it will become: by the time it reaches maximum concentration, it will look like coffee mixed with cream.

WHO announcement, smallpox was included in a list of viral and bacterial weapons targeted for improvement in the 1981-85 Five-Year-Plan.

One of its most notable contributions was a milling machine that used a powerful blast of air to turn bacterial and viral mixtures into a fine powder.

Genetic engineering solved this problem: scientists could synthesize the genes that code for the production of myelin toxin, reproduce them artificially in the lab, and insert them into bacterial cells.

If a bacterial strain compatible with myelin toxin could be found, the transplanted genes would multiply along with the bacteria.

In the 1930s scientists found that when certain chemical dyes containing sulphur were added to bacterial cultures, the bacteria reproduced at dramatically slower rates.

The model was one we had used to develop and manufacture bacterial biological weapons.

The automatic safeguards flushed the entire contents of the bacterial sorting chamber out into space.

Instead, Eli Strone was deeply preoccupied at a pulsed-laser bacterial sorter, a processing sieve that separated out desirable species from the unwanted ones.

Pan had meant to kill him by blowing out the airlock in the bacterial separation lab.

This is the genuinely decisive technology of modern medicine, exemplified best by modern methods for immunization against diphtheria, pertussis, and the childhood virus diseases, and the contemporary use of antibiotics and chemotherapy for bacterial infections.

The ribosomes inside the mitochondria are similar to bacterial ribosomes, and different from animal ribosomes.

The root nodules of legumes would have neither form nor function without the masses of rhizobial bacteria swarming into root hairs, incorporating themselves with such intimacy that only an electron microscope can detect which membranes are bacterial and which plant.

The great contemporary achievement of modern medicine is the technology for controlling and preventing bacterial infection, but this did not fall into our laps with the appearance of penicillin and the sulfonamides.

According to evolutionary theory, random changes in bacterial genes would, sooner or later, produce strains capable of surviving any given form of attack.