IPA: /dɪˈsteɪn/
KK: /dɪˈsteɪn/
To remove a stain from something, especially to prepare it for examination under a microscope.
The scientist needed to destain the slides before viewing them under the microscope.
Past: destained
Past Participle: destained
Destain → It is formed from "de-" (meaning down or away) and "stain" (from Old French *teindre*, meaning to dye or color). The word "destain" means to remove a stain or color, effectively taking it away.
Think of 'taking away' ('de-') a 'stain' — that's why destain means to remove a stain.