'preisolate' definitions:

Definition of 'preisolate'

From: WordNet
verb
Isolate beforehand

Definition of 'preisolate'

From: GCIDE
  • pre-isolate \pre-isolate\, preisolate \preisolate\v. t. (chemistry) To isolate[3] (a substance) beforehand. [WordNet 1.5]