microorganisms

Cultural  

1. Organisms so small that they can be seen only through a microscope. (See bacteria, protozoa, and viruses.)

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Example Sentences

His company gathers data on environmental conditions and available substrates, and sequences the genomes of microorganisms appropriate for the food industry.

From BBC • Jun. 4, 2026

This involves genetically engineering microorganisms, such as moulds, to produce a specific material in a fermentation process.

From BBC • Jun. 4, 2026

Phosphorus-removing microorganisms are less effective when it’s hot, making summer a stress test for CREW’s system.

From The Wall Street Journal • May 14, 2026

Up to 80 per cent of colorectal cancer risk is thought to be influenced by environmental factors, including the microorganisms in the gut.

From Science Daily • Apr. 22, 2026

It devoted itself to developing protective vaccines, and it concentrated on basic research into ways to control lethal microorganisms.

From "The Hot Zone" by Richard Preston