yeast

Definition

Yeast is a type of fungus that can make bread rise and beer foam. It is a single-celled organism that reproduces by budding.

Yeast cells need food and water to grow. They also need a warm environment. When yeast cells have food, water, and warmth, they start to reproduce. As they reproduce, they release carbon dioxide gas. This gas is what makes bread rise.

Yeast is also used to make beer and wine. In beer making, yeast is added to wort, which is a mixture of water, malted barley, and hops. The yeast ferments the wort, turning it into beer.

How can the word be used?

The bread was made with yeast.

Different forms of the word

Noun: yeast (plural: yeasts).

a single-celled fungus that can ferment carbohydrates.
a leavening agent.

Adjective: yeasty.

Verb: to yeast.

to ferment with yeast.

Etymology

The word "yeast" comes from the Old English word "gist", which means "foam" or "froth". The Old English word "gist" is related to the Old Norse word "gista" and the German word "Geste".

The word "yeast" is first attested in the 13th century. It was originally used to refer to the foam or froth that forms on top of fermenting liquids.

The modern meaning of the word "yeast" refers to a single-celled fungus that is used to make bread, beer, and wine. Yeast is a type of microorganism that can reproduce rapidly by budding. When yeast cells reproduce, they release carbon dioxide gas, which causes the dough to rise.

Question

What yeast used for?