root beer

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noun

a carbonated beverage flavored with syrup made from the extracted juices of roots, barks, and herbs that have been fermented with sugar and yeast.

Origin of root beer

An Americanism dating back to 1835–45
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British Dictionary definitions for root beer

root beer


noun

US and Canadian an effervescent drink made from extracts of various roots and herbs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012