An artificially produced beta-emitting isotope of potassium having a half-life of 12.36 hours; it is used as a radioactive tracer in studies of potassium distribution in bodily fluids.

Nearby words

  1. potassium phosphate,
  2. potassium sulfate,
  3. potassium sulphate,
  4. potassium thiocyanate,
  5. potassium-40,
  6. potassium-43,
  7. potassium-argon dating,
  8. potation,
  9. potato,
  10. potato apple

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.