A douche containing a medicinal substance for the treatment of local conditions.  

The amount of a substance, bacterium, or toxin that will kill 50% of the animals exposed to it.  

An infective dose that causes disease in half the subjects exposed to it.  

A dose that cures half of all treated patients.  

An estimated measure of average radiation exposure given to the blood-forming progenitor cells of the bone marrow, e.g., in whole...

The highest dose of radiation to which a person may be exposed over 1 year.  

The largest dose that is safe to administer.  

The dose required to sustain a desired effect.  

Deoxyribonucleic acid (DNA) in the intracellular bodies known as mitochondria. It differs from nuclear DNA in its nucleotide sequences, its...

Response to the inability to carry out one’s chosen ethical/moral decision/action.