stain

Noun
  1. A soiled or discolored appearance (synset 104702524)
    "the wine left a dark stain"
    is a type of: appearance, visual aspect - outward or visible aspect of a person or thing
    subtypes:
    same as: discoloration, discolouration
  2. (microscopy) a dye or other coloring material that is used in microscopy to make structures visible (synset 115077537)
    referred to in: microscopy - research with the use of microscopes
    is a type of: color, coloring material, colour, colouring material - any material used for its color
    subtypes:
    • crystal violet, gentian violet - a green crystal (violet in water) used as a dye or stain or bactericide or fungicide or anthelmintic or burn treatment
    • methylene blue, methylthionine chloride - a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
    • counterstain - a stain of contrasting color that is used when the principal stain does not show the structure clearly
  3. The state of being covered with unclean things (synset 114521680)
    is a type of: dirtiness, uncleanness - the state of being unsanitary
    same as: dirt, filth, grease, grime, grunge, soil
  4. A symbol of disgrace or infamy (synset 106807523)
    "And the Lord set a mark upon Cain"
    is a type of: symbol - an arbitrary sign (written or printed) that has acquired a conventional significance
    subtypes:
    same as: brand, mark, stigma
  5. An act that brings discredit to the person who does it (synset 100073081)
    "he made a huge blot on his copybook"
    is a type of: error, fault, mistake - a wrong action attributable to bad judgment or ignorance or inattention
    same as: blot, smear, smirch, spot
Verb
  1. Color with a liquid dye or tint (synset 200286768)
    "Stain this table a beautiful walnut color"; "people knew how to stain glass a beautiful blue in the middle ages"
    is a type of: dye - color with dye
    subtypes:
    • ebonise, ebonize - stain black to make it look like ebony
    • dip - stain an object by immersing it in a liquid
    • tattoo - stain (skin) with indelible color
    • marble - paint or stain like marble
    • vein - make a veinlike pattern
  2. Produce or leave stains (synset 200287365)
    "Red wine stains the table cloth"
    is a type of: alter, change, modify - cause to change; make different; cause a transformation
    subtypes: smut - stain with a dirty substance, such as soot
    verb group: blob, blot, fleck, spot - make a spot or mark onto
  3. Make dirty or spotty, as by exposure to air;
    Also used metaphorically (synset 201540197)
    "The silver was tarnished by the long exposure to the air"; "Her reputation was sullied after the affair with a married man"
    is a type of: blob, blot, fleck, spot - make a spot or mark onto
    subtypes: darken - tarnish or stain
    same as: defile, maculate, sully, tarnish
  4. Color for microscopic study (synset 200284175)
    "The laboratory worker dyed the specimen"
    is a type of: dye - color with dye

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