Refractory



GRE 蓝宝 Barron

解释

GRE 红宝书

• adj. 难驾驭的; ( 病) 难治的
• ［英］ adj. 难驾驭的 ( stubborn, unmanageable) ; ( 病) 难治的 ( resistant to treatment and cure)
• ［记］ re ( 重新) +fract ( 断裂) -> 宁折不弯 -> 难驾驭的

Webster Collegiate

I. adjective

• Etymology: alteration of refractary, from Latin refractarius, irregular from refragari to oppose, from re- + -fragari (as in suffragari to support with one's vote)
• Date: 1606
• 1. resisting control or authority ; stubborn, unmanageable
• 2.
  • a. resistant to treatment or cure <a refractory lesion>
  • b. unresponsive to stimulus
  • c. immune, insusceptible <after recovery they were refractory to infection>
• 3. difficult to fuse, corrode, or draw out; especially capable of enduring high temperature
• Synonyms: see unruly
• ? refractorily adverb
• ? refractoriness noun

II. noun (plural -ries)

• Date: 1627
• a refractory person or thing; especially a heat-resisting ceramic material

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