名詞 mordant:

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

形容詞 mordant:

1. harshly ironic or sinister
   同義詞：black, grim
2. of a substance, especially a strong acid; capable of destroying or eating away by chemical action
   同義詞：caustic, corrosive, erosive, vitriolic

mor.dant

adj.（形容詞）

Bitingly sarcastic:
尖銳諷刺的：
例句：
mordant satire.
尖刻的諷刺作品

Incisive and trenchant:
一針見(jiàn)血的和犀利的：
例句：
an inquisitor`s mordant questioning.
審訊者一針見(jiàn)血的提問(wèn)

Bitingly painful.
非常痛苦的
Serving to fix colors in dyeing.
媒染：在染色中用于固定顏色的
n.（名詞）
A reagent, such as tannic acid, that fixes dyes to cells, tissues, or textiles or other materials.
媒染體：一種可以將染色固定到細(xì)胞、組織或紡織品及其它材料上的試劑，如鞣酸
A corrosive substance, such as an acid, used in etching.
金屬腐蝕劑：一種用于蝕刻腐蝕性物質(zhì)，例如酸
v.tr.（及物動(dòng)詞）
mor.dant.ed,mor.dant.ing,mor.dants
To treat with a mordant.
以其腐蝕性來(lái)處理

來(lái)源：
French
法語(yǔ)
from Old French [present participle of] mordre [to bite]
源自 古法語(yǔ) [] mordre的現(xiàn)在分詞 [咬]
from Vulgar Latin *mordere
源自 俗拉丁語(yǔ) *mordere
from Latin mordôre [to bite] * see mer-
源自 拉丁語(yǔ) mordôre [咬] *參見(jiàn) mer-

【引伸】
mor.dancy
n.（名詞）
mor.dantly
adv.（副詞）