Online Google Dictionary

confocal 中文解釋 wordnet sense Collocation Usage Collins Definition
Adjective
/känˈfōkəl/,
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Having a common focus or foci,
  1. Having a common focus or foci
    • - confocal ellipses
  2. Denoting or using a microscope whose imaging system only collects light from a small spot on the specimen, giving greater resolution

  1. In geometry, confocal means having the same foci.