biosource

plural biosources

1. A biological source of some material.

   There is growing interest in alternative adsorbentia, eg, from biosources such as rice-hull ash (silica) (Proctor etal.. 1995) or soy hull carbon (Proctor and Harris, 1996).

   2001, M. B. Springett, Raw ingredient quality in processed foods, page 44

   1 more example

   The reason petroleum so often serves as the foundation for plastics production is that it offers an ultraconcentrated source of carbon, but carbon is carbon and with the right manipulations other handier biosources like lawn litter will do.

   2008 April 15, Natalie Angier, “Adored, Deplored and Ubiquitous”, in New York Times