Definition of "biochemistry"

biochemistry

noun
countable and uncountable, plural biochemistries
1. (uncountable) The chemistry of those compounds that occur in living organisms, and the processes that occur in their metabolism and catabolism
2. (countable) The chemical characteristics of a particular living organism
  Quotations
  They [viruses] use more varied biochemistry than cellular life, storing their genetic information as both single- and double-stranded DNA as well as RNA.
  2012, Caspar Henderson, The Book of Barely Imagined Beings, page 146
3. (countable) The biochemical activity associated with a particular chemical or condition