infiltrate

English edit

Etymology edit

From Middle English infiltrate (adj), from Medieval Latin infiltrātus, from infiltrō.

Pronunciation edit

(UK) IPA^(key): /ˈɪnfɪltɹeɪt/
(US) IPA^(key): /ˈɪnfəltɹeɪt/, /ɪnˈfɪltɹeɪt/
Audio (US) (file)

Verb edit

infiltrate (third-person singular simple present infiltrates, present participle infiltrating, simple past and past participle infiltrated)

(transitive, intransitive) To surreptitiously penetrate, enter or gain access to.
The spy infiltrated the high-tech company and stole many secrets.
(transitive) To cause to penetrate in this way.
The agency infiltrated several spies into the company.
(transitive, intransitive, of a liquid) To pass through something by filtration.
(transitive) To cause (a liquid) to pass through something by filtration.
(transitive, intransitive, medicine) To invade or penetrate a tissue or organ.
High-grade tumors often infiltrate surrounding structures.

In certain conditions, immune cells may infiltrate into the cerebrospinal fluid.
(transitive, military) To send (soldiers, spies, etc.) through gaps in the enemy line.
Antonym: exfiltrate
(intransitive, of an intravenous needle) To move from a vein, remaining in the body.

Derived terms edit

Translations edit

to surreptitiously penetrate, enter or gain access

Catalan: infiltrar (ca)
Czech: proniknout (cs)
Esperanto: infiltri
Finnish: soluttautua
French: infiltrer (fr)
German: infiltrieren (de)
Greek: διεισδύω (el) (dieisdýo)
Hindi: घुसपैठ करना (ghuspaiṭh karnā), पैठना (hi) (paiṭhnā)
Hungarian: beszivárog (hu)
Ido: infiltrigar (io)
Irish: insíothlaigh, síothlaigh isteach
Italian: infiltrare
Japanese: 潜入する (せんにゅうする, sennyū suru)
Russian: проса́чиваться (ru) impf (prosáčivatʹsja), просочи́ться (ru) pf (prosočítʹsja) (of a liquid); проника́ть (ru) impf (pronikátʹ), прони́кнуть (ru) pf (proníknutʹ)
Sicilian: nfirtrari
Spanish: infiltrarse (es)
Swedish: infiltrera (sv)

to cause a fluid to pass through a substance by filtration

Bulgarian: процеждам (bg) (proceždam), просмуквам се (prosmukvam se)
Catalan: infiltrar (ca)
Finnish: suodattaa (fi)
Irish: insíothlaigh, síothlaigh isteach
Italian: filtrare (it)
Japanese: 浸透させる (しんとうさせる, shintō saseru)
Manx: yn-heel
Sicilian: firtrari
Spanish: infiltrar (es)
Turkish: süzmek (tr)

to send soldiers through gaps in the enemy line

Albanian: please add this translation if you can
Armenian: please add this translation if you can
Belarusian: пранікаць у тыл праціўніка impf (pranikacʹ u tyl praciŭnika), пранікнуць у тыл праціўніка pf (praniknucʹ u tyl praciŭnika)
Esperanto: please add this translation if you can
Estonian: please add this translation if you can
Finnish: soluttaa
Georgian: please add this translation if you can
Hungarian: please add this translation if you can
Italian: infiltrare
Japanese: 潜入させる (せんにゅうさせる, sennyū saseru)
Latvian: please add this translation if you can
Lithuanian: please add this translation if you can
Polish: infiltrować impf, zinfiltrować pf
Romanian: please add this translation if you can
Russian: проникать в тыл противника impf (pronikatʹ v tyl protivnika), проникнуть в тыл противника pf (proniknutʹ v tyl protivnika)
Sicilian: nfirtrari
Slovak: please add this translation if you can
Thai: สอดแทรก
Turkish: please add this translation if you can
Ukrainian: please add this translation if you can

move from a vein

Noun edit

infiltrate (plural infiltrates)

(pathology) Any undesirable substance or group of cells that has made its way into part of the body.
- 2008, Jimmy D. Bartlett, Siret D. Jaanus, Clinical Ocular Pharmacology, page 539:
  One critical distinction to make is whether a focal corneal infiltrate is infected with bacteria or is a sterile immunologic response.