Question

define the word fermentation

Answer 1

a small part broken off or separated from
something is called fragments
the process or state of breaking or being broken into fragments.

Answer 2

Fermentation, chemical process by which molecules such as glucose  are broken down anaerobically. More broadly, fermentation is the foaming that occurs during the manufacture of wine  and beer a process at least 10,000 years old. The frothing results from the evolution of carbon dioxide gas, though this was not recognized until the 17th century. French chemist and microbiologist Louis Pasture  in the 19th century used the term fermentation in a narrow sense to describe the changes brought about by yeasts  and other microorganisms growing in the absence of air (anaerobically); he also recognized that ethyl alcohol  and carbon dioxide are not the only products of fermentation.

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