Definition of counterstain in English:
counterstain
nounˈkaʊntəˌsteɪnˈkaʊn(t)ərˌsteɪn
Biology An additional dye used in a microscopy specimen to produce a contrasting background or to make clearer the distinction between different kinds of tissue.
Example sentencesExamples
- Dapi was used as the chromosome counterstain for fluorescent specimens.
- The shape of the nucleus was visualized using a DNA counterstain in all experiments.
- Harris hematoxylin was the counterstain for the remainder of the antibody reactions.
- Immunoreactivity was visualized using diaminobenzidine as the chromogen, with Harris modified hematoxylin as the counterstain.
- No counterstain was used on the sections, but routine coverslips were applied.
verbˈkaʊntəˌsteɪnˈkaʊn(t)ərˌsteɪn
[with object]Biology Treat (a specimen) with a counterstain.
Example sentencesExamples
- Background material in the specimen was counterstained dull yellow to red.
- The chromosomes are counterstained with DAPI (light blue).
- After washing in tap water, specimens were briefly counterstained.
- The chromosomes were counterstained with propidium iodide.
- Slides were counterstained with hematoxylin, dehydrated, and mounted with glass coverslips.
Definition of counterstain in US English:
counterstain
nounˈkaʊn(t)ərˌsteɪnˈkoun(t)ərˌstān
Biology An additional dye used in a microscopy specimen to produce a contrasting background or to make clearer the distinction between different kinds of tissue.
Example sentencesExamples
- Immunoreactivity was visualized using diaminobenzidine as the chromogen, with Harris modified hematoxylin as the counterstain.
- Dapi was used as the chromosome counterstain for fluorescent specimens.
- The shape of the nucleus was visualized using a DNA counterstain in all experiments.
- Harris hematoxylin was the counterstain for the remainder of the antibody reactions.
- No counterstain was used on the sections, but routine coverslips were applied.
verbˈkaʊn(t)ərˌsteɪnˈkoun(t)ərˌstān
[with object]Biology Treat (a specimen) with a counterstain.
Example sentencesExamples
- Background material in the specimen was counterstained dull yellow to red.
- The chromosomes were counterstained with propidium iodide.
- After washing in tap water, specimens were briefly counterstained.
- Slides were counterstained with hematoxylin, dehydrated, and mounted with glass coverslips.
- The chromosomes are counterstained with DAPI (light blue).