coccidioidin

[kŏk-sĭd′ē-oidn]
n.
  1. A sterile solution containing the byproducts of growth of Coccidioides immitis; it is used as an intracutaneous skin test for coccidioidomycosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.