To pass through something by filtration.
To cause to penetrate in this way.
To invade or penetrate a tissue or organ.
To surreptitiously penetrate, enter or gain access to.
To send (soldiers, spies, etc.) through gaps in the enemy line.
To move from a vein, remaining in the body.
To cause (a liquid) to pass through something by filtration.
Any undesirable substance or group of cells that has made its way into part of the body.
To subject; to put through a process.
To yield (something) to another, as when defeated.
To win a fight against (an opponent) by submission.
To enter or put forward for approval, consideration, marking etc.
To yield or give way to another.