acid dye

noun

Medical Definition of acid dye

: any of a large class of dyes that contain acidic groups usually in the form of sodium or potassium salts, that are soluble in water, and that are used especially in aqueous or alcoholic solution for staining cytoplasm and various acidophilic structures of cells and tissues

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“Acid dye.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/acid%20dye. Accessed 22 Sep. 2020.

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