counterstain
transitive verb Date: 1895 to stain (as a microscopy specimen) so as to color parts (as the cytoplasm of cells) not colored by another stain (as a nuclear stain) • counterstain noun

New Collegiate Dictionary. 2001.

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  • Counterstain — Gram positive anthrax bacteria with counterstained white blood cells A counterstain is a stain with color contrasting to the principal stain, making the stained structure more easily visible. An example is the malachite green counterstain to the… …   Wikipedia

  • counterstain — n. /kown teuhr stayn /; v. /kown teuhr stayn /, Histol. n. 1. a second stain of a different color applied to a microscopic specimen and used to color and contrast those parts not retaining the first stain. v.t. 2. to treat (a microscopic… …   Universalium

  • counterstain — coun•ter•stain [[t]ˈkaʊn tərˌsteɪn[/t]] n. 1) lab a second stain applied to a microscopic specimen for contrast 2) lab to treat (a microscopic specimen) with a counterstain 3) lab to become counterstained; take a counterstain • Etymology: 1890–95 …   From formal English to slang

  • counterstain — noun /ˈkaʊntəsteɪn/ (say kowntuhstayn) 1. a stain applied to a microscopic specimen to distinguish even further parts not retaining a previous stain. –verb (t) /kaʊntəˈsteɪn/ (say kowntuh stayn) 2. to treat (a specimen) with a counterstain. –verb …   Australian English dictionary

  • counterstain — Rather nonspecific stain used in conjunction with another histochemical reagent of greater specificity to provide contrast and reveal more of the general structure of the tissue. Light Green is used as a counterstain in the Mallory procedure, for …   Dictionary of molecular biology

  • counterstain — 1. noun A stain contrasting with the principal stain in color, thus making the stained structure easier to see 2. verb To stain with a counterstain …   Wiktionary

  • counterstain — A second stain of different color, having affinity for tissues, cells, or parts of cells other than those taking the primary stain, used to render more distinct the parts taking the first stain. * * * coun·ter·stain .stān n a stain used to color… …   Medical dictionary

  • counterstain — n. second stain applied to a previous stain (on a microscopic specimen) …   English contemporary dictionary

  • counterstain — coun·ter·stain …   English syllables

  • counterstain — noun a stain of contrasting color that is used when the principal stain does not show the structure clearly • Hypernyms: ↑stain …   Useful english dictionary

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