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Microorganism Meaning: Definition, Examples, and Translations

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microorganism

[หŒmaษช.krษ™สŠหˆษ”หr.ษกษ™.nษชz.ษ™m ]

Definition

Context #1 | Noun

biology

A microorganism is a tiny living organism, such as a bacterium or fungus, that can only be seen with a microscope.

Synonyms

bacterium, fungus, germ, microbe.

Which Synonym Should You Choose?

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Word Description / Examples
microorganism

Used in scientific or general contexts when referring to any microscopic organism, including bacteria, viruses, fungi, and protozoa.

  • Scientists are studying various microorganisms to understand their impacts on human health.
  • Microorganisms play a crucial role in breaking down organic matter in the environment.
microbe

A general term that can refer to any microscopic organism, similar to 'microorganism'. Often used in scientific or medical contexts.

  • Microbes in the gut microbiome are essential for digestion.
  • The soil is teeming with various microbes that are important for plant growth.
germ

Commonly used in everyday language to refer to microorganisms that cause disease. Often has a negative connotation.

  • Wash your hands frequently to avoid spreading germs.
  • The school was closed for a day for deep cleaning to eradicate germs.
bacterium

Specifically refers to single-celled microorganisms that can be beneficial or harmful. Commonly used in medical, biological, and scientific contexts.

  • The bacterium responsible for causing strep throat is called Streptococcus pyogenes.
  • Researchers discovered a new bacterium that helps in decomposing plastic waste.
fungus

Refers to a group of microorganisms that includes yeasts, molds, and mushrooms. Often used in biological or ecological contexts.

  • The fungus that grows on old bread is known as mold.
  • A beneficial fungus, Penicillium, is used to produce antibiotics.

Examples of usage

  • Microorganisms play a crucial role in various ecological processes.
  • Some microorganisms can be harmful to humans, while others are beneficial.
  • The study of microorganisms is known as microbiology.
  • Microorganisms can be found in almost every environment on Earth.
  • Microorganisms are often used in the production of food and medicine.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Science

  • Microorganisms can be classified into several categories including bacteria, viruses, archaea, fungi, and protists.
  • Some microorganisms are essential for processes like decomposition and nutrient cycling in ecosystems.
  • Many microorganisms live in our bodies and help with digestion, some even protect us from harmful bacteria.

Health

  • Certain microorganisms are used in medicine, such as penicillin, an antibiotic derived from fungi.
  • Vaccines often use weakened or inactivated microorganisms to help our bodies learn to fight diseases.
  • There are more microbial cells in our body than human cells, showing how important they are for our health.

Pop Culture

  • Microorganisms have been featured in films like 'Contagion', depicting their role in diseases.
  • Animated characters like the 'Germ' in 'The Magic School Bus' series help children learn about microorganisms.
  • Public campaigns often use microorganisms to discuss hygiene, emphasizing the importance of handwashing.

Ecology

  • Microorganisms play a critical role in ecosystems by breaking down organic matter and recycling nutrients.
  • Some microorganisms live in extreme environments, like deep-sea vents or polar ice, showcasing life's adaptability.
  • They are key players in processes such as nitrogen fixation, which is essential for plant growth.

Origin of 'microorganism'

Main points about word origin

  • The term comes from the Greek words 'micros', meaning small, and 'organism', meaning a living entity.
  • It was first used in the 19th century as scientists discovered these tiny life forms.
  • Many early microscopes were developed to study microorganisms, leading to significant scientific advancements.

The term 'microorganism' was first coined by Antonie van Leeuwenhoek in the 17th century when he observed microscopic organisms using his newly invented microscope. The discovery of microorganisms revolutionized the field of biology and paved the way for the development of microbiology as a scientific discipline. Microorganisms have since been studied extensively for their role in various processes, from disease-causing pathogens to beneficial symbiotic relationships.

See also: organisms.

Word Frequency Rank

Positioned at #23,139, this word is part of extensive vocabulary. It's relatively rare in general usage but may be important in specific fields or formal writing.