from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A highly energetic or dynamic person. Also called fireball.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person who is especially hard-working, high-achieving, ambitious, or active.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. someone whose career progresses rapidly
- n. a highly energetic and indefatigable person
Sorry, no etymologies found.