Biochemistry

Noun

1. The chemistry of those compounds that occur in living organisms, and the processes that occur in their metabolism and catabolism; the study of such chemistry.

   "My aunt has a degree in biochemistry."

2. The chemical characteristics of a particular living organism.

   "The biochemistries of fungal and bacterial cells are quite distinct."

3. The biochemical activity associated with a particular chemical or condition.

   "Our study compared the biochemistries of epilepsy and Parkinson's."