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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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



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.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Infiltrator Water Technologies is a l manufacturer of products for the water and wastewater industries.
While leftist organizations have claimed the infiltrators are refugees, figures presented by the state have shown the overwhelming majority of them are not refugees, but rather work migrants breaking the law in a search of greater job opportunities.
Ever since the eruption of the recent Arab revolutions, the people have been receiving warnings about the presence of "infiltrators" described by the governments as being "opposed to security and stability," and planning on using the protests to carry out sabotage and create anarchy.
What followed was a two-month bloody manhunt for the infiltrators that left all but two of the North Koreans dead.
Michael Dvorak, Infiltrator's vice president of sales and marketing, said that Infiltrator chamber systems can be as much as 50 to 60 percent smaller than stone and pipe installations, and eliminate the labor of mining, crushing, and hauling stone.
Israel"has got to show unshakable motivation in the face of the danger of being turned into 'a country of all its infiltrators,'" warned Yishai.
"Investigations with the infiltrator showed that he had no official documents nor weapons," he said, adding he will be investigated to find out why he entered Iraqi territories illegally.
Infiltrator's lightweight, scientifically engineered chambers are an easy-to-install replacement for outdated stone and pipe leach-fields.
Later, infiltrators will be kicked out from Calcutta to Kutch and from Kashmir to Kanyakumari," he added.
The BJP chief also said infiltrator from every part of the country will be kicked out if BJP comes to power again.
The BJP president alleged that infiltrators want to change the demography of Jammu region and vowed to oust every single infiltrator from the country if voted again to power.