Definition of bacteria
: bacterium —not usually used technically
Is bacteria singular or plural?
Bacteria is regularly a plural in scientific and pedagogical use; in speech and in journalism it is also used as a singular, and it is sometimes pluralized as bacterias. caused by a bacteria borne by certain tiny ticks — Wall Street Jour. more resistant to chlorine and elevated water temperatures than other bacterias — Allan Bruckheim, M.D., Chicago Tribune These journalistic uses are found in British as well as American sources.
Recent Examples of bacteria from the Web
Handily, the system works in any organism, not just the bacteria in which Cas9 is found naturally.
Through their bites, these bloodsuckers pick up the bacteria that cause Lyme disease from white-footed mice and then spread those microbes to people.
But snags are actually host to complex communities of decomposers — fungi, bacteria, bugs.
Typically about half of the adult ticks that come in for testing at a University of Massachusetts lab carry the bacteria, and that’s about what the lab is seeing again this year, said Stephen Rich.
The meat is separated from the fat, and ammonia gas is applied to kill bacteria.
Bacteria have been using CRISPR for billions of years to slice apart the genetic material of viruses that invade their cells.
Studies have shown that both sugar and artificial sweeteners can decrease good bacteria levels in the gut.
For bacteria, Crispr serves as a kind of immunization card.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bacteria.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
Microscopic single-celled organisms lacking a distinct nucleus are known as bacteria. They may be shaped like spheres, rods, or spirals. They inhabit virtually all environments, including soil, water, organic matter, and the bodies of animals. Many bacteria swim by means of long whip-like structures called flagella. The DNA of most bacteria is found in a single, circular chromosome, and is distributed throughout the cytoplasm rather than contained within a membrane-enclosed nucleus. Though some bacteria can cause food poisoning and infectious diseases in humans, most are harmless and many are beneficial. They are used in various industrial processes, especially in the food industry (for example, in the production of yogurt, cheeses, and pickles).
Origin and Etymology of bacteria
plural of bacterium
First Known Use: 1864See Words from the same year
Medical Definition of bacteria
Medical Definition of bacteria
1: bacterium—not usually used technically caused by a bacteria borne by certain tiny ticks—Wall Street Journal a single bacteria—there are roughly 200 in each cough—apparently can infect a person—Cheryl Clark
2plural capitalized : a domain in the system of classification dividing all organisms into three major domains of life that includes the prokaryotes that are bacteria but not those that are archaebacteria or archaea—compare eubacteria
Seen and Heard
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