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 classic literature ?
He has dissolved Representative Houses repeatedly, for opposing with manly firmness his invasions on the rights of the people.
Secondly, let them be prest, and ready to give aids and succors, to their confederates; as it ever was with the Romans; insomuch, as if the confederate had leagues defensive, with divers other states, and, upon invasion offered, did implore their aids severally, yet the Romans would ever be the foremost, and leave it to none other to have the honor.
Then came the prayer just received from the Synod- a prayer for the deliverance of Russia from hostile invasion.
I have a magic charm powerful enough to accomplish that wonderful feat, and now that we have been warned of our danger by the Nome King's invasion, I believe we must not hesitate to separate ourselves forever from all the rest of the world.
It might even win battles, and yet your standing army are mercenaries, and no great nation, from the days of Babylon, has resisted invasion or held an empire by her mercenaries.
I was taken home, nervous and overwrought, sick with the invasion of my real life by that other life of my dreams.
She mobilized five times as many millions of her militia and awaited the invasion.
Since historical times the land we now call England has been conquered three times, for we need hardly count the Danish Invasion.
The invasion would, of course, have been greatly favoured by high land, and perhaps by a dry climate; for Dr.
I believe it was on that very evening that I ventured on another invasion of Wildfell Hall.
I suspect he was secretly horrified at these invasions.
A state like this would ever be exposed to the invasions of those who were powerful and inclined to attack it; but, as has been already mentioned, its situation preserves it, as it is free from the inroads of foreigners; and for this reason the family slaves still remain quiet at Crete, while the Helots are perpetually revolting: for the Cretans take no part in foreign affairs, and it is but lately that any foreign troops have made an attack upon the island; and their ravages soon proved the ineffectualness of their laws.