neutral stain


neutral stain
neutral stain n NEUTRAL DYE

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a compound that combines an acid dye and a basic dye, the cation and anion of the resulting salt each having a different color.

Medical dictionary. 2011.

Look at other dictionaries:

  • neutral stain — noun : neutral dye 2 …   Useful english dictionary

  • neutral dye — n a salt formed by interaction of an acid dye (as eosin) and a basic dye (as methylene blue) called also neutral stain …   Medical dictionary

  • neutral dye — noun 1. : a dye capable of dyeing fibers (as cotton) directly in a neutral or faintly alkaline bath 2. : a salt formed by interaction of an acid dye (as eosin) and a basic dye (as methylene blue) called also neutral stain …   Useful english dictionary

  • Neutral red — IUPAC name toluylene red …   Wikipedia

  • stain — 1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and reagents is used to color the constituents of cells and tissues. For… …   Medical dictionary

  • neutral red — Used as an indicator (red at pH 6.8, yellow at 8.0), as a vital dye to stain granules and vacuoles in living cells, in testing the secretion of acid by the stomach (given with a test meal), and in general histologic staining. SYN …   Medical dictionary

  • stain — 1) n. a dye used to colour tissues and other specimens for microscopical examination. In an acid stain the colour is carried by an acid radical and the stain is taken up by parts of the specimen having a basic (alkaline) reaction. In a basic… …   The new mediacal dictionary

  • neutral red — noun Date: 1890 a basic dye used chiefly as a biological stain and acid base indicator …   New Collegiate Dictionary

  • neutral red — noun 1. sometimes capitalized N&R : a basic phenazine dye used chiefly as a biological stain and acid base indicator 2. : a dark red to purplish red that is lighter and stronger than plum violet or sultana and paler than wild cherry …   Useful english dictionary

  • Periodic acid-Schiff stain — Periodic acid Periodic acid Schiff (PAS) is a staining method used to detect glycogen and other polysaccharides in tissues. The reaction of periodic acid oxidizes the diol functional groups in glucose and other sugars, creating aldehydes that… …   Wikipedia


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