GNU Collaborative International Dictionary of English

Found one definition

1.       
   Nesslerize , v. t. [From Nessler, the chemist.] (Chem.) To treat or test, as a liquid, with a solution of mercuric iodide in potassium iodide and potassium hydroxide, which is called Nessler's solution or Nessler's test, and is used to detect the presence of ammonia.
   1913 Webster