biochemistry

noun3

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.
   • The biochemistry of NO differs from that of NO₂.