1. A descendant.
2. A shoot or twig, especially one cut for grafting or planting
Just remember that guy that was always there in your school or college who had it all even before putting in his first hour of honest work: he was a scion.
1. George struts about the college just because he is the scion of the Founder.
2. A newly grafted scion of bougainvillea will flower only if its tended to with care.
3. Hercules was capable of great feats not only because he was the scion of Zeus but also a strong human being.