stain

• n.
  • a soiled or discolored appearance

    "the wine left a dark stain"

    同义词： discoloration discolouration

  • (microscopy) a dye or other coloring material that is used in microscopy to make structures visible
  • the state of being covered with unclean things

    同义词： dirt filth grime soil grease grunge

  • a symbol of disgrace or infamy

    同义词： mark stigma brand

  • an act that brings discredit to the person who does it

    同义词： blot smear smirch spot

• v.
  • color with a liquid dye or tint

    "people knew how to stain glass a beautiful blue in the middle ages"

  • produce or leave stains

    "Red wine stains the table cloth"

  • make dirty or spotty, as by exposure to air; also used metaphorically

    同义词： tarnish maculate sully defile

  • color for microscopic study

以上来源于: WordNet