Dictionary

potassium–argon

adjective

Definition of POTASSIUM-ARGON

:  being or relating to a method of dating paleontological or geological materials based on the radioactive decay of potassium to argon that has taken place in a specimen

First Known Use of POTASSIUM-ARGON

1953

Browse

Next Word in the Dictionary: potassium bisulfatePrevious Word in the Dictionary: potassium amideAll Words Near: potassium-argon
March 29, 2015
discomfit Hear it
To thwart or disconcert
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears