stain
47
6.5
- noun
- /steɪn/
- Specialized
:
tinción
- In preparation for the experiment, she carefully applied the stain to the slides to enhance their visibility under the microscope.
- Gram stain
- Hematoxylin and eosin stain
- H&E stain
Examples
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The acid-fast stain for mycobacteria and the Gomori methenamine silver stain were negative.
Academic text (2008) -
Can you see the sweat stains through the jacket?
-
I'm gonna say three coats of stain.
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Namely if you look at the gorgeous stain of cross sections of the retina.
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We're on the road showing real people the stain-fighting power of OxiClean.
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You, you see over here in the left results from the cell stains, cell and fiber stains.
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Results of Gram stain testing and bacterial culture of CSF were negative for all patients.
Academic text (2013) -
Sunset brought a few minutes of sad glory to the sky: a jade-colored stain with violet streakings.
Fiction book (1992) -
I examined it chemically for blood stains and microscopically for fibers.
-
By mid-September, I had spotted my kitchen walls with stains caused by silver nitrate solution that had accidentally spilled.
Academic text (2004)
Synonyms
A purplish-red dye used to color cells on microscope slides
A purple dye used to stain cells or tissue for viewing under a microscope
A positively charged stain used to colour acidic parts of cells
A chemical that glows under a microscope to stain cells
A substance used to add color to cloth and hair
Antonyms
Compounds
- Specialized
1
5.1
A lab test that uses dyes and a microscope to show if bacteria keep a purple colour
- Specialized
1
4.8
A lab method that uses dye to show whether bacteria keep or lose the dye
- Specialized
A flat pink or purple birthmark on the skin caused by too many small blood vessels
Surface Forms
Etymology
The noun stain for a dye comes from the simple idea of making a 'mark', so a stain in the lab is the colour or dye used to make parts of a cell stand out.