Bacteria

/bakˈtɪəriə/

Meaning & Definition

noun

Plural form of bacterium; microscopic single-celled organisms that exist as independent (free-living) organisms or as parasites.

Bacteria are essential for nutrient cycling in ecosystems.

A group of microorganisms that can cause diseases in humans, animals, and plants.

Some bacteria are harmful, leading to infections such as strep throat.

Prokaryotic microorganisms that have a wide range of shapes and metabolic types, found in various environments.

Bacteria can be found in extreme environments, such as hot springs and deep-sea vents.

From the New Latin 'bacterium', derived from the Greek 'baktērion,' meaning 'small staff.'

good bacteria

Beneficial bacteria that help in digestion and other processes.

bad bacteria

Harmful bacteria that can cause infections or diseases.

bacterial infection

An infection caused by bacteria.

antibiotics

Substances that kill or inhibit the growth of bacteria.

microbiology

The branch of science that studies microorganisms, including bacteria.

pathogen

An organism that causes disease, often referring to bacteria.

Bugs

I can't eat that meat; it's full of bugs.

Germs

Wash your hands; those germs are everywhere!