| Health / Medical Topics |
Biological Half-Life
The time that it takes for an unadulterated administered substance to be reduced by a factor of 2 in its concentration by natural physiological processes. This is entirely separate from any radioactive decay that may or may not be present. (NCI Thesaurus)
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A biological parent of the biological father or biological mother.
A female relative who is the biological mother of either the biological mother or the biological father.
A male relative who is the biological father of either the biological mother or the biological father.
A biological child of an individual's biological child.
A male who contributes to the genetic makeup of his offspring through the fertilization of an ovum by his sperm.
A physiological process in which body systems act on drugs, neutralizing their chemical effects.
