形容詞 biochemical:

1. of or relating to biochemistry; involving chemical processes in living organisms

1. The theory that microorganisms or biochemical compounds from outer space are responsible for originating life on Earth and possibly in other parts of the universe where suitable atmospheric conditions exist.
   有生源說，胚種論一種學說，認為來自宇宙空間的微生物或生物化學物是地球上生命的起源，并且在宇宙的其他部分可能有適合的大氣狀況存在
2. Any of the chemically distinct forms of an enzyme that perform the same biochemical function.
   同工酶，同功酶具有相同的生化功能的一種酶的不同化學形式中的任一種
3. A substance, especially an enzyme, that initiates or modifies the rate of a chemical reaction in a living body; a biochemical catalyst.
   生物催化劑能在活的體內產生化學反應或改變生物體內化學反應速度的物質，尤指酶; 生物化學催化劑