Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary


noun in·fil·tra·tion \ˌin-(ˌ)fil-ˈtrā-shən\

Medical Definition of infiltration

  1. 1a:  the act or process of infiltratingb:  something that infiltrates <anesthetic drug infiltration>

  2. 2:  an abnormal bodily condition produced or characterized by infiltration

Seen and Heard

What made you want to look up infiltration? Please tell us where you read or heard it (including the quote, if possible).