Pronunciation: (rā'zur-bak"), [key]
1. a finback or rorqual.
2. a wild or semiwild hog with a ridgelike back, common in the southern U.S.
3. a sharp narrow ridge or range of hills.
Also,ra'zor•backed",ra'zor-backed".having a sharp ridge along the back.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.