from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See submediant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The sixth tone of the scale, immediately above the dominant.
from the GNU version of the Collaborative International Dictionary of English
- n. The sixth tone of the scale; that next above the dominant; -- called also submediant.
from The Century Dictionary and Cyclopedia
- n. In music, same as submediant.
Lemmings (Lemmus spp. and Dicrostonyx spp.) are superdominant species during peak years of their population cycles  and have large effects on ecosystem processes .
Each industry bears examination on its own merits, but you shouldn't assume you need to find a superdominant entity to do well.
It's on this generic web search that Google is superdominant, taking 87.5 percent of UK searches against Yahoo's 4.3 percent and Bing's mere 3.6 percent (comScore: Sep '09).