|  mordant 
 
 a substance used to treat leather or other materials before dyeing;
 aids in dyeing process
 • Hypernyms:
 coloring material, colouring material, color, colour
 • Hyponyms:
 chrome alum, tartar emetic, antimony potassium tartrate, sodium dichromate, sodium bichromate
 
 1. harshly ironic or sinister
 - black humor
 - a grim joke
 - grim laughter
 - fun ranging from slapstick clowning ... to savage mordant wit
 • Syn:
 black, grim
 • Similar to:
 sarcastic
 • Derivationally related forms:
 grimness (for: grim)
 2. of a substance, especially a strong acid;
 capable of destroying or eating away by chemical action
 • Syn:
 caustic, corrosive, erosive, vitriolic
 • Similar to:
 destructive
 • Derivationally related forms:
 vitriol (for: vitriolic), erode (for: erosive), corrosive (for: corrosive), corrode (for: corrosive), caustic (for: caustic)
 
 
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