refractory

名词 refractory:

1. lining consisting of material with a high melting point; used to line the inside walls of a furnace
   同义词：furnace lining

形容词 refractory:

1. not responding to treatment
   同义词：stubborn
2. temporarily unresponsive or not fully responsive to nervous or sexual stimuli
3. stubbornly resistant to authority or control
   同义词：fractious, recalcitrant

1. The state or quality of being stubborn or refractory.
   顽固，倔强顽固、固执或倔强的状态或性质

re.frac.to.ry

adj.（形容词）
Obstinately resistant to authority or control.See Synonyms at unruly
执拗的：顽固地不服从领导或控制参见 unruly
Difficult to melt or work; resistant to heat:
耐高温的：难熔解的；耐热的：
例句：
a refractory material such as silica.
如硅石等耐热材料

Resistant to treatment:
难治愈的：
例句：
a refractory case of acne.
一种难治愈的痤疮

n.（名词）
【复数】 re.frac.to.ries
One that is refractory.
倔强的人
Material that has a high melting point.
耐火材料：有较高熔点的物质

来源：
Alteration influenced by adjectives in -ory
受 -ory中的形容词影响
of obsolete refractary
废语 refractary的变化
from Latin refr3ct3rius
源自 拉丁语 refr3ct3rius
from refr3ctus [past participle of] refringere [to break up] * see refract
源自 refr3ctus [] refringere的过去分词 [打碎] *参见 refract

【引伸】
refrac.torily
adv.（副词）
refrac.toriness
n.（名词）