overstain

verb

overstain

verb

Etymology From over- + stain.

1

To stain the surface of; besmear.

It is very difficult to overstain with safranin. Wash slides with several changes of water, until water is no longer pink.2004, Robert N. Trigiano, Dennis J. Gray, Plant Development and Biotechnology - Page 46:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.