- A genus of ticks of the Ixodidae family, certain species of which are vectors of Rocky Mountain spotted fever.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for amblyomma
Amblyomma americanum, (fig. 158c), the "lone star tick," is widely distributed in the United States.
In the extreme southern portions of Texas, Amblyomma cajennense, is a common pest of man.