Usually means: Related to closest point in orbit.
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We found 5 dictionaries that define the word perifocal:

General (2 matching dictionaries)
  1. perifocal: Wiktionary
  2. perifocal: Dictionary.com

Medicine (3 matching dictionaries)
  1. perifocal: Merriam-Webster Medical Dictionary
  2. online medical dictionary (No longer online)
  3. perifocal: Medical dictionary

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Definitions from Wiktionary (perifocal)

▸ adjective:  Surrounding a focus

Similar:
extrafocal, intrafocal, circumfoveal, pericentral, perifoveal, exofocal, parafoveal, interfocal, peripupillary, peripapillary, more...

Opposite:
central, focal, main, primary, core

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Similar:
extrafocal, intrafocal, circumfoveal, pericentral, perifoveal, exofocal, parafoveal, interfocal, peripupillary, peripapillary, more...

Opposite:
central, focal, main, primary, core



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