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bottom fermentation


a slow kind of alcoholic fermentation at a temperature low enough that the yeast cells can sink to the bottom of the fermenting liquid; used in the production of lager


process noun (natural processes)


bottom fermentations

Original source:

Princeton WordNet

Definition references  (+images)



the production of beer through steeping a starch source in water and then fermenting with yeast. It's done in a brewery by a brewer, and the brewing industry is part of most western economies. Brewing has taken place since around the 6th millennium BC,... (44 of 9054 words, 10 images)


Oxford Dictionary:

bottom fermentation

the process by which lager-type beers are fermented, proceeding for a relatively long period at low temperature with the yeast falling to the bottom (24 of 46 words)



bottom fermentation [brewing] | bottom fermentations [plural]

A slow alcoholic fermentation process carried out at low temperatures during which the yeast sinks to the bottom of the liquid. Used in brewing lager-type beers. (26 of 28 words)

en​.wiktionary​.org​/wiki​/bottom fermentation

Britannica Encyclopedia:

fermentation [chemical reaction]

originally, the foaming that occurs during the manufacture of wine and beer, a process at least 10,000 years old. That the frothing results from the ... (25 of 434 words, 4 images)


Columbia Encyclopedia:


process by which the living cell is able to obtain energy through the breakdown of glucose and other simple sugar molecules without requiring oxygen. ... (24 of 331 words)


Collins Dictionary:

zymolysis | zymosis [synonym]

the process of fermentation (4 of 176 words, pronunciation)



fermentation | ferment [sense-specific, synonym] | broadly [synonym, sense-specific] | disquiet [synonym, sense-specific] | unrest [synonym, sense-specific] | restiveness [synonym, sense-specific] | restlessness [synonym, sense-specific] | Sturm und Drang [synonym, sense-specific] | turmoil [synonym, sense-specific] | ...

a chemical change with effervescence ; an enzymatically controlled ... | "ferment" [sense-specific] (12 of 129 words, 2 definitions, 1 usage example, pronunciation)


Macmillan British Dictionary:

ferment [intransitive/transitive] | fermented [past tense] | fermenting [present participle] | ferments [3rd-person singular present] | fermentation [noun, uncountable, related]

if food or drink ferments or is fermented, a chemical change happens to it and the sugar in it produces alcohol (21 of 54 words, pronunciations)


Cambridge Dictionary:

ferment [entry 1] | fermentation [noun, derived]

to (cause something to) change chemically through the action of living substances, such as yeast or bacteria (17 of 44 words, 1 usage example, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/ferment 1

American Heritage Dictionary:

fermentation | zymology [chemistry] | zymolysis [chemistry]

The anaerobic conversion of sugar to carbon dioxide and alcohol by yeast. | Any of a group of chemical reactions induced by living or nonliving ... (24 of 40 words, 3 definitions, pronunciation)


New World Dictionary:

zymolysis | zymolytic [adjective, related]

the fermentative action of enzymes | fermentation or other changes resulting from this (12 of 26 words, 2 definitions, pronunciations)


Random House Dictionary:

zymolysis [biochemistry]

the digestive and fermentative action of enzymes. (7 of 13 words, pronunciation)


Encarta Dictionary:

zymolysis [technical] | zymosis [biochemistry] | zymolytic [adjective, derived]

the action of enzymes in the process of fermentation (9 of 29 words, pronunciations)

encarta​.msn​.com​/dictionary 1861707326​/definition​.html  [offline]

Page last updated: 2013-06-26

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