Part of Speech

Noun (plural)

Pronunciation

/bækˈtɪəɹɪə/

Definitions

1. Bacteria: Microscopic, single-celled organisms that can exist independently, in chains, or as colonies. They are found in almost all environments and can be beneficial (such as in digestion) or harmful (as pathogens causing disease).
2. Bacteria: The plural form of bacterium, which refers to the individual organisms within the category.

Usage Examples

• Many bacteria play a vital role in breaking down organic material in the environment.
• Some bacteria can cause serious infections in humans, such as tuberculosis and cholera.

Etymology

The term "bacteria" comes from the Greek word "bakterion," meaning "small rod," which refers to the rod-shaped appearance of many bacteria. The term was first coined in the late 19th century as scientists began studying microorganisms and their role in disease.

Synonyms

• Microorganisms
• Germs
• Microbes

Antonyms

• Viruses
• Fungi
• Non-living matter

Translations

Regional Pronunciation Variations

In American English: /bækˈtɪəɹɪə/

In British English: /bækˈtɪəɹɪə/

In Australian English: /bækˈtɪəɹɪə/

Historical Usage

The term "bacteria" was coined in the 19th century during the rise of microbiology. Scientists like Robert Koch and Louis Pasteur made significant contributions to understanding bacteria’s role in diseases. Bacteria became central to the development of germ theory, which revolutionized medicine and hygiene practices.

Cultural Nuances

Bacteria are a double-edged sword in cultural perceptions. While they are critical to digestion and environmental processes, the notion of bacteria as pathogens has shaped cultural attitudes towards hygiene, medicine, and health practices. In some cultures, the word "bacteria" may evoke fear, while in others, their beneficial role in fermentation and agriculture is more emphasized.

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