lacuna是什么意思？

lacuna

英[ləˈkju:nə] 美[ləˈkjunə]

• n. 空白，空隙，腔隙，缺陷；

复数：lacunae;

例句

• Objective To investigate the clinical value of transcranial Doppler ( TCD ) in cerebral lacuna infarct. 目的探讨经颅多普勒 ( TCD ) 检查在脑腔隙性梗死中的应用价值.
• There was so much very deep lacuna in his crude big hands. 粗糙的大手上一道道很深的裂口.
• Reasons of forming first cracks were foundry lacuna, impurity gathering , lard exiting. 铸造缺陷 、 杂质元素偏聚和夹杂物的存在是形成早期裂纹源的原因.

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  （文件、论点等中对重要问题的）缺漏，脱漏，遗缺
  If you say that there is a lacuna in something such as a document or a person's argument, you mean that it does not deal with an important issue and is therefore not effective or convincing.
  例句
  There are still major lacunae in the material available. 手边的材料依然存在严重缺漏。

英英词典释义

• Noun
  1. a blank gap or missing part
  2. an ornamental sunken panel in a ceiling or dome

行业词典

• 动物学： 陷窝；管道；
  医学： 〔复lacunae〕〔NA〕腔隙，陷窝：身体结构内或结构间一个分隔空间的通称；缺损，裂隙：例如在视野中的盲点scotoma；