Simple Definition of infiltrate
: 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)
Full Definition of infiltrate
1 : to cause (as a liquid) to permeate something by penetrating its pores or interstices
2 : to pass into or through (a substance) by filtering or permeating
3 : to pass (troops) singly or in small groups through gaps in the enemy line
4 : to enter or become established in gradually or unobtrusively usually for subversive purposes <the intelligence staff had been infiltrated by spies>
: to enter, permeate, or pass through a substance or area by filtering or by insinuating gradually
infiltrationplay \ˌin-(ˌ)fil-ˈtrā-shən\ noun
infiltrativeplay \ˈin-(ˌ)fil-ˌtrā-tiv, in-ˈfil-trə-\ adjective
infiltratorplay \in-ˈfil-ˌtrā-tər, ˈin-(ˌ)\ noun
Examples of infiltrate in a sentence
The gang was infiltrated by undercover agents.
Attempts to infiltrate undercover agents into the gang have failed.
Water can easily infiltrate the soil.
First Known Use of infiltrate
Rhymes with infiltrate
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Medical Definition of infiltrate
transitive verb: to cause (as a liquid) to permeate something by penetrating its pores or interstices <infiltrate tissue with a local anesthetic>
2: to pass into or through (a substance) by filtering or permeating
intransitive verb: to enter, permeate, or pass through a substance or area
Medical Definition of infiltrate
: 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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