1) top part of a graft. with leaves and buds. that is grafted to the stock or root stock. 2) woody tissue (that does not require buds) used to complete a bridge graft.

Merriam-Webster Online Dictionary
scion (noun)
1.
a detached living portion of a plant (as a bud or shoot) joined to a stock in grafting and usually supplying solely aerial parts to a graft
2.
a) - descendant child , especially a descendant of a wealthy, aristocratic, or influential family
b) - heir scion of a railroad empire
scion (Wikipedia)

Scion may refer to:

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