coarctation是什么意思？

coarctation

英[ˌkəʊɑ:k'teɪʃən] 美[ˌkoʊɑk'teɪʃən]

• n. 密集，收缩；

例句

• Coarctation of the lower thoracic aorta . [ comment ] . 缩窄下胸 主动脉.
• This portion of aorta was resected from a patient with a coarctation. 主动脉的一部分,通过切除一例主动脉狭窄病人的主动脉而得来.
• The characteristics of small faults are coarctation and zonation with clear direction. 小断层具有密集成带的特点,且方向性明显,成为影响煤矿生产的主要地质因素.

英英词典释义

• Noun
  1. tight or narrow compression
  2. (biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta

行业词典

• 医学： 缩窄；