rootstock
roots·tock
noun
1.
2.
root or part of a root used for plant propagation; especially that part of a grafted plant that supplies the roots
Origin
From root + stock.
Related words
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.