infiltrate

play
verb in·fil·trate \in-ˈfil-ˌtrāt, ˈin-(ˌ)\

Definition of infiltrate

infiltrated

infiltrating

  1. transitive verb
  2. 1 :  to cause (as a liquid) to permeate something by penetrating its pores or interstices

  3. 2 :  to pass into or through (a substance) by filtering or permeating

  4. 3 :  to pass (troops) singly or in small groups through gaps in the enemy line

  5. 4 :  to enter or become established in gradually or unobtrusively usually for subversive purposes <the intelligence staff had been infiltrated by spies>

  6. intransitive verb
  7. :  to enter, permeate, or pass through a substance or area by filtering or by insinuating gradually

infiltrate

noun

infiltration

play \ˌin-(ˌ)fil-ˈtrā-shən\ noun

infiltrative

play \ˈin-(ˌ)fil-ˌtrā-tiv, in-ˈfil-trə-\ adjective

infiltrator

play \in-ˈfil-ˌtrā-tər, ˈin-(ˌ)\ noun

Examples of infiltrate in a sentence

  1. The gang was infiltrated by undercover agents.

  2. Attempts to infiltrate undercover agents into the gang have failed.

  3. Water can easily infiltrate the soil.

1758

First Known Use of infiltrate

1758


INFILTRATE Defined for English Language Learners

infiltrate

play
verb in·fil·trate \in-ˈfil-ˌtrāt, ˈin-(ˌ)\

Definition of infiltrate for English Language Learners

  • : to secretly enter or join (something, such as a group or an organization) in order to get information or do harm

  • : to cause (someone) to secretly enter or join a group, organization, etc.

  • : to pass into or through (something)


Medical Dictionary

1

infiltrate

play play
verb in·fil·trate \in-ˈfil-ˌtrāt, ˈin-(ˌ)\

Medical Definition of infiltrate

infiltrated

;

infiltrating

  1. 1

  2. transitive verb

  3. :  to cause (as a liquid) to permeate something by penetrating its pores or interstices <infiltrate tissue with a local anesthetic>

  4. 2:  to pass into or through (a substance) by filtering or permeating

  5. intransitive verb

  6. :  to enter, permeate, or pass through a substance or area


2

infiltrate

noun in·fil·trate

Medical Definition of infiltrate

  1. :  something that passes or is caused to pass into or through something by permeating or filtering; especially :  a substance that passes into the bodily tissues and forms an abnormal accumulation <a lung infiltrate>



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