1. a substance used to treat leather or other materials before dyeing; aids in dyeing process

1. harshly ironic or sinister;

   "black humor"
   "a grim joke"
   "grim laughter"
   "fun ranging from slapstick clowning ... to savage mordant wit"
   

2. of a substance, especially a strong acid; capable of destroying or eating away by chemical action

1.尖刻的;刻薄的;尖锐讥讽的
mordant humour is very critical and often mocks someone or something.

e.g. A wicked,mordant sense of humour has come to the fore in Blur's world.
布勒的世界里已出现了一种恶意、刻薄的幽默感。

1. mordant的解释

1. 媒染剂：然后又被染上了复染液(番红)的颜色,因此呈现红色.革兰氏染色需用四种不同的溶液:碱性染料(basic dye)初染液;媒染剂(mordant脱色剂(decolorising agent)和复染液(counterstain).碱性染料初染液的作用象在细菌的单染色法基本原理中所述的那样,

2. 腐蚀剂：mooring ring 系船环 |mordant 腐蚀剂 | mortar 灰浆

3. 媒染：mordancy 尖酸 |mordant 媒染 | more and more 越来越多

4. 媒染的;媒染剂：Montmorilionite 蒙脱石,蒙脱土(酸性白土之一种) |mordant 媒染的;媒染剂 |mordanting bath 浸色浴