Microbe: meaning, definitions and examples

Generally used in scientific or educational contexts to refer to very small organisms, including bacteria, viruses, and fungi.

• Scientists discovered a new type of microbe in the soil.
• Microbes play a key role in the ecosystem.

A broad term typically used in scientific or technical contexts to describe any microscopic organism, including bacteria, fungi, and protists.

• Microorganisms are essential for fermentation processes.
• The lab is studying the behavior of different microorganisms.

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

• Wash your hands frequently to prevent the spread of germs.
• Germs can cause illnesses like the flu and the common cold.

Specifically refers to a single organism within the Bacteria domain. Often used in scientific discussions or when mentioning one type of bacteria.

• The bacterium responsible for the infection was identified as E. coli.
• A single bacterium can reproduce rapidly if conditions are right.