https://www.merriam-webster.com/dictionary/overstain
OVERSTAIN Definition & Meaning - Merriam-Webster
The meaning of OVERSTAIN is to stain to excess; specifically : to stain (tissue sections) excessively especially in order to demonstrate selected elements by...
definitionmeaningmerriamwebster
https://mg.wiktionary.org/wiki/overstain
overstain - Wikibolana, raki-bolana malalaka
wikibolanaraki