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Related to staining: Gram staining


v. stained, stain·ing, stains
1. To discolor, soil, or spot: The spilled juice stained the carpet.
2. To bring into disrepute; taint or tarnish: The scandal stained the mayor's reputation.
3. To change the color of (a piece of wood, for example) by applying a stain.
4. To treat (a specimen for the microscope) with a reagent or dye in order to identify cell or tissue structures or microorganisms.
To produce or receive discolorations: upholstery that stains easily.
1. A discolored or soiled spot or smudge: a stain that was difficult to scrub out.
2. A diminishment of one's moral character or good reputation by being associated with something disgraceful.
3. A liquid substance applied especially to wood that penetrates the surface and imparts a rich color.
4. A reagent or dye used for staining microscopic specimens.

[Middle English steinen, partly from Old French desteindre, desteign-, to deprive of color (des-, dis- + teindre, to dye, from Latin tingere), and partly from Old Norse steina, to paint.]

stain′a·ble adj.
stain′er n.
Synonyms: stain, blot1, brand, stigma, taint
These nouns denote a mark of discredit or disgrace, as on one's good name: a stain on his honor; a blot on an otherwise clean police record; the brand of cowardice; the stigma of ignominious defeat; the taint of political corruption.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.staining - (histology) the use of a dye to color specimens for microscopic study
dyeing - the use of dye to change the color of something permanently
Gram method, Gram stain, Gram's method, Gram's procedure, Gram's stain - a staining technique used to classify bacteria; bacteria are stained with gentian violet and then treated with Gram's solution; after being decolorized with alcohol and treated with safranine and washed in water, those that retain the gentian violet are Gram-positive and those that do not retain it are Gram-negative
histology - the branch of biology that studies the microscopic structure of animal or plant tissues
2.staining - the act of spotting or staining somethingstaining - the act of spotting or staining something
dirtying, soiling, soilure - the act of soiling something


(= change in colour)(Ver)färbung f; (= soiling)Verschmutzung f
(esp Tech: = dyeing) → Färben nt; (of wood)Beizen nt


n. coloración, tintura.
References in periodicals archive ?
Therefore, the present study was aimed to optimize the steps of AO staining protocol for buffalo sperm which has not been explored yet.
Leishman stain is a simple, quick and inexpensive staining technique easily available in both urban and rural laboratories which can be used as an efficacious tool to interpret cytosmears.
The purpose of this study was to detect and confirm the presence of acid fast bacilli in lymph node biopsies using routine Ziehl Neelsen stain, Kinyoun stain and fluorescence staining and also to determine the best, rapid and more cost effective technique of staining for the detection of acid fast bacilli.
Most of the national tuberculosis control programs (NTPs) are using Ziehl Neelsen (ZN) staining technique to identify AFB.
Natural dyes extracted from plants, animals and minerals were used as essential staining material in the paint, texture and other industries [9].
This unique product gives homeowners and DIYers the flexibility and confidence to stain before the weather is perfect, and it provides peace of mind if unexpected rain hits after staining.
Many laboratories prefer Rhodamine Auramine method of staining AFB over carbol fuchsin stain because the fluorescing bacilli are more readily detected.
In addition, staining provides options for a vast array of aesthetically pleasing looks for new concrete and an attractive way to revitalize existing spaces.
These products provide a solution to staining caused by lipstick, makeup, pen ink, and sweat stains.
Putting new wood through the same stripping, cleaning and staining process as the old wood will produce a better match when the job is done.
The Hematek 3000 System from Siemens Healthcare Diagnostics provides semi-automated slide staining to laboratories.
Cryptosporidium oocysts exhibit acid-fast staining and must be differentiated from partially acid-fast organisms including Cyclospora cayetanensis [2].