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fern seed
Fernando de Noronha
Fernando Póo
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fermentation lock
fer·men·ta·tion lock (plural fer·men·ta·tion locks)


noun 
Definition:
 
valve used in winemaking: a valve used in winemaking to seal a container of fermenting wine, allowing gas to escape but no air to enter
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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