invasion

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invasion

1. Pathol the spread of cancer from its point of origin into surrounding tissues
2. Ecology the movement of plants to a new area or to an area to which they are not native

Invasion

 

(infestation), the infection of man, animals, and plants by animal parasites.

Invasion may be active, as when a parasite attacks or penetrates the body of the host through injured or intact skin, or passive, brought into the body with water or food.

invasion

[in′vā·zhən]
(geology)
The movement of one material into a porous reservoir area that has been occupied by another material.
(medicine)
The phase of an infectious disease during which the pathogen multiplies and is distributed; precedes signs and symptoms.
The process by which microorganisms enter the body.
References in periodicals archive ?
In related news, the soldiers invaded Doura town, southwest of the southern West Bank city of Hebron, and the nearby towns of Ethna and Yatta, and installed roadblocks on roads leading to Sa'ir and Halhoul towns, in addition to the southern entrance of Hebron city, before stopping and searching dozens of cars, and interrogated many Palestinians while inspecting their ID cards.
Stuart Laycock, the author, went through the history of each country alphabetically, researching its history to establish whether, at any point, they were invaded by Britain, the report said.
Nadir Shah Afshar invaded India and swept away the wealth of the Mughals.
The tumor was found to have invaded the cochlea and most of the labyrinth.
With the arguable exception of Grenada, most every nation that has been invaded by the United States has had an awful history to follow.
In Iran, for instance, the hopeful movement toward democracy went into remission after we invaded neighboring Iraq.
In this study, we investigated if the high conservation value of invaded salt marshes is preserved.
BLAIR and Bush made a terrible mistake when they invaded Iraq.
US President George W Bush has declared that he wouldn't stand for his country being invaded and would take up arms against an invading army.
When the scientists injected the syncytin-promoting virus into the brains of live mice, the viruses invaded astrocytes and caused these cells to produce large amounts of the protein.