anachoresis

noun2

1. •
   Retreat from the world into a solitary life.

   • It's possible to have a contemporary version of (secular) anachoresis. — 2012
2. •
   The transportation of foreign bodies via blood or lymph and subsequent collection at a site of inflammation.

   • Anachoresis, or anachoretic pulpitis, is, therefore, a pulpitis of systemic origin. — 1963