stain : Idioms & Phrases

• the art or practice of coloring glass in its whole substance, or, in the case of certain colors, in a superficial film only; also, decorative work in glass. Cf. Glass painting.

Webster 1913

• noun 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
  Gram stain; Gram method; Gram's method; Gram's procedure.
  

WordNet

• noun 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
  Gram stain; Gram method; Gram's method; Gram's procedure.
  

WordNet

• noun a stain produced by mud
  

WordNet

• noun a stain produced by oil
  

WordNet

• noun a flat birthmark varying from pink to purple
  nevus flammeus.
  

WordNet

• noun a fungus with a reddish purple cap having a smooth slimy surface; close violet gills; all parts stain dark purple when bruised
  Cortinarius mutabilis.
  

WordNet

• noun glass that has been colored in some way; used for church windows
  

WordNet

• glass colored or stained by certain metallic pigments fused into its substance, often used for making ornament windows.

Webster 1913

• noun a window made of stained glass
  

WordNet

• adjective satellite soiled from travel
  travel-soiled.
  
  • travel-soiled clothes

WordNet