filtration


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filtration

 [fil-tra´shun]
passage through a filter or other material that prevents passage of certain molecules, particles, or substances.

fil·tra·tion

(fil-trā'shŭn),
1. The process of passing a liquid or gas through a filter.
2. In radiology, the process of attenuating and hardening a beam of x- or gamma rays by interposing a filter3 between the radiation source and the object being irradiated; inherent filtration is that which is caused by the apparatus itself, such as the glass of an x-ray tube, without addition of a filter.
Synonym(s): percolation (1)

fil·tra·tion

(fil-trā'shŭn)
1. The process of passing a liquid or gas through a filter.
2. radiology The process of attenuating and hardening a beam of x-rays or gamma rays by interposing a filter (3) between the radiation source and the object being irradiated; inherent filtration is that which is caused by the apparatus itself, such as the glass of an x-ray tube, without addition of a filter.
Synonym(s): percolation (1) .

filtration

The movement of fluid virtually free of large molecules such as proteins, across capillary membranes under the influence of hydrostatic pressure.

fil·tra·tion

(fil-trā'shŭn)
1. Process of passing liquid or gas through a filter.
2. In radiology, process of attenuating and hardening a beam of x- or gamma rays by interposing a filter between radiation source and the object being irradiated.
Synonym(s): percolation (2) .
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