biosynthesis noun. 
[bʌɪǝ(ʊ)'sɪnƟɪsɪs] M20.[from BIO- + SYNTHESIS.]Synthesis (of a chemical substance) by a living organism.
 ■   biosynthesize verb trans. produce by biosynthesis 
M20. ■   biosyn'thetic adjective of, pertaining to, or produced by biosynthesis 
M20. ■   biosyn'thetically adverb M20.  [TahlilGaran] English Dictionary ▲