0 the process of secretly becoming part of a group in order to get information or to influence the way that a group thinks or behaves:
1 the process of moving slowly into a substance, place, system, or organization:
2 the process in which substances build up in tissue or cells where they are not normally found or where they are normally found in much lower amounts:
There was a cellular reaction (fig. 3) involving infiltration of mononuclear cells, plasma cells and mast cells even after worm expulsion.
An infiltration of eosinophils was also observed in the surrounding tissue.
Following infiltration of the tissues with paraffin, they were embedded into paraffin blocks for storage until microtome sectioning.
This also reduces the infiltration so often associated with jointing window frames into walls.
Most peripheral cholangiocarcinoma develop in the small ducts and grow in a nodular, massive or diffuse pattern with early infiltration into the hepatic parenchyma.
Within 4 months, blasts were detected in the blood, and there was evidence of infiltration into bone marrow and spleen.
Energy-efficient 4" structural insulated panel exterior walls, with foam sealant at all joints to cut air infiltration.
Ocular migration produces an early cellular reaction, formed by an infiltration of neutrophils accompanied by vasculitis and retinal microinfarcts.
