blot smear smirch spot stain | an act that brings discredit to the person who does it, he made a huge blot on his copybook |
Gram's method Gram method Gram's procedure Gram's stain Gram 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 |
cartridge extractor cartridge remover extractor | a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector |
stain discoloration discolouration | a soiled or discolored appearance, the wine left a dark stain |
mud stain | a stain produced by mud |
oil stain | a stain produced by oil |
port-wine stain nevus flammeus | a flat birthmark varying from pink to purple |
mark stigma brand stain | a symbol of disgrace or infamy, And the Lord set a mark upon Cain--Genesis |
remover | someone who works for a company that moves furniture |
dirt filth grime soil stain grease grunge | the state of being covered with unclean things |
remover | a solvent that removes a substance (usually from a surface), paint remover, rust remover, hair remover |
stain | (microscopy) a dye or other coloring material that is used in microscopy to make structures visible |
stain | color for microscopic study, The laboratory worker dyed the specimen |
stain | color with a liquid dye or tint, Stain this table a beautiful walnut color, people knew how to stain glass a beautiful blue in the middle ages |
stain | produce or leave stains, Red wine stains the table cloth |
tarnish stain maculate sully defile | make dirty or spotty, as by exposure to air, also used metaphorically, The silver was tarnished by the long exposure to the air, Her reputation was sullied after the affair with a married man |