bi·o·re·ac·tor

[bahy-oh-ree-ak-ter]
noun
Biotechnology. a fermentation vat for the production of living organisms, as bacteria or yeast, used in industrial processes such as waste recycling or in the manufacture of drugs or other products.

Origin:
1970–75; bio- + reactor

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage
Science Dictionary
bioreactor   (bī'ō-rē-āk'tər)  Pronunciation Key 
An apparatus, such as a large fermentation chamber, for growing organisms such as bacteria or yeast under controlled conditions. Bioreactors are used in the biotechnological production of substances such as pharmaceuticals, antibodies, or vaccines, or for the bioconversion of organic waste.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
00:10
Bioreactor is always a great word to know.
So is interrobang. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a stew of meat, vegetables, potatoes, etc.
Example sentences
But a leak from a bioreactor could be worse, since bacteria can learn new
  tricks when you're not looking.
Shepherd places a bioreactor inside an incubator where it will be pumped with a
  growth medium for a few days.
The image shows a cut-away view of an aerobic bioreactor.
The results should shed light on the types of microbes living in the bioreactor
  and the types of genes that predominate.
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