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root beer
root canal
root cap
root cellar
root climber
root crop
root directory
root hair
root knot
root mean square
root nodule
root out
root pressure
root rot
root system
root up
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rootstock
root·stock [ rt stòk, rt stòk ] (plural root·stocks)


noun 
Definition:
 
1. botany 
Same as  rhizome
2. root used in grafting: a root or piece of root used as a stock in propagation by grafting
3. source of something: a source or origin of something
[Mid-19th century. <root1]
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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