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Definition of Reabsorption

Reabsorption: Absorbing again. For example, the kidney selectively reabsorbs substances such as glucose, proteins, and sodium which it had already secreted into the renal tubules. These reabsorbed substances return to the blood.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=5227
Last Editorial Review: 3/26/1998 2:28:00 PM

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