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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
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.
Dec 2, 2022 · Bacteria are microscopic living organisms that have only one cell. The word for just one is “bacterium.” Millions (if not billions) of different types of bacteria can be found all over the world, including in your body.
Bacteria (/ bækˈtɪəriə / ⓘ; sg.: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms.
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.
Jul 24, 2022 · Bacteria are defined as organisms that are microscopic, unicellular, independently reproducing, and mostly free-living. Bacteria are ubiquitous in nature. They are structurally simple but functionally complex organisms that form the basis of all life on earth.
Sep 3, 2024 · Bacteria are 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.
noun. uk / bækˈtɪə.ri.ə / us / bækˈtɪr.i.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.
Oct 19, 2023 · Bacteria. Bacteria are microscopic infectious agents that have a long history of infecting humans, but they also play a vital role in supporting human health.
bacteria. sing. bacterium Microorganisms made up of a single cell that has no distinct nucleus. Bacteria reproduce by fission or by forming spores. Discover More. Notes. Some bacteria are beneficial to humans (for example, those that live in the stomach and aid digestion), and some are harmful (for example, those that cause disease). Discover More.
