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- DictionaryBac·te·ri·um/bakˈtirēəm/
noun
- 1. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.
The meaning of BACTERIA is bacterium. How to use bacteria in a sentence. Is bacteria singular or plural?: Usage Guide
Bacteria ( / bækˈtɪəriə / ⓘ; sg.: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats.
Oct 4, 2019 · Bacteria Definition. Bacteria are single-celled microorganisms with prokaryotic cells, which are single cells that do not have organelles or a true nucleus and are less complex than eukaryotic cells. Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life.
Bacteria definition: ubiquitous one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising numerous and variously classified phyla. See examples of BACTERIA used in a sentence.
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May 9, 2024 · Bacteria, microscopic single-celled organisms that inhabit virtually all environments on Earth, including the bodies of multicellular animals. Bacteria lack a membrane-bound nucleus and other internal structures. Learn about the features, types, and significance of bacteria.
BACTERIA definition: 1. plural of bacterium 2. plural of bacterium 3. very small organisms that are found everywhere and…. Learn more.
noun. us / bækˈtɪr.i.ə / uk / bækˈtɪə.ri.ə / Add to word list. plural of bacterium. Examples. a colony of bacteria. There are many different types of bacteria. Some bacteria can only live in anaerobic conditions. Food must be heated to a high temperature to kill harmful bacteria. Many sorts of bacteria are resistant to penicillin.
