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1. Pathol any substance that passes into and accumulates within cells, tissues, or organs
2. Pathol a local anaesthetic solution injected into the tissues to cause local anaesthesia



an accumulation in bodily tissues of cellular elements admixed with blood and lymph. Inflammatory and tumorous infiltrates occur most often.

An inflammatory infiltrate consists chiefly of polymorphonuclear leukocytes (suppurative infiltrate), erythrocytes (hemorrhagic infiltrate), lymphoid cells (round cell infiltrate), and histiocytes and plasma cells (histiocyte-plasma cell infiltrate). These infiltrates may be resolved, may liquefy, or may undergo sclerosis and form caverns, abscesses, scars, and so forth.

A tumorous infiltrate consists of tumor cells of different kinds (carcinoma, sarcoma); it is a manifestation of the infiltrating growth of a tumor. When an infiltrate forms, the tissue enlarges, changes color, and becomes harder and sometimes painful. In surgical practice, an infiltrate is an induration that develops in tissues when they become saturated with an anesthetic.


References in periodicals archive ?
Based on the latest reports, Ethiopians are among these infiltrators.
Speaking about the cease-fire offer, Prince Khaled voiced his doubts about the infiltrators good intentions.
In the last crack down, 31 Asian infiltrators and an Arab national who harboured them were apprehended.
The ROP also deported 26 infiltrators after taking the necessary legal actions, in coordination with their respective embassies.
Al-Amry was killed during a battle with infiltrators.
Action will be taken against whoever employs infiltrators and absconding employees, or exploit them or encourage them to violate the law, the official warned.
This year so far, Oman has deported more than 8,000 infiltrators, mostly by sea route.
In 2011, Omani authorities arrested 2,145 infiltrators who entered the country illegally for the purpose of working in the Sultanate and in other GCC countries.
Prince Muhammad bin Nasser said on Wednesday that the strong action taken by Saudi Arabia to flush out infiltrators will deter anyone thinking of violating the Kingdom's borders.
Summary: ABU DHABI -- As many as 9,842 illegal residents and infiltrators were arrested in the country from January to April this year, a senior official at the Ministry of Interior said on Monday.
by Times News Service The Royal Oman Police (ROP), in collaboration with other military and security departments, last week arrested 71 infiltrators of different nationalities several wilayats for entering the Sultanate illegally.
Meanwhile, the ROP on Sunday deported 397 infiltrators by boat from Sultan Qaboos Port in Muscat.