Biological material

Biological material may refer to:

Natural materials

 * Organic matter, matter that has come from a once-living organism, or is composed of organic compounds
 * A chemical substance present or produced in a living organism
 * Biomolecule, a molecule present in a living organism
 * Biogenic substance, a chemical substance produced by a living organism
 * Biotic material, natural material, or natural product, a material produced by a living organism
 * Biomass, living or dead biological matter, often plants grown as fuel
 * Biomass (ecology), the total mass of living matter in a given environment, or of a given species
 * Body fluid, any liquid originating from inside the bodies of living people
 * Cellular component, material and substances of which cells (and thus living organisms) are composed
 * Tissue (biology), a cellular organizational level intermediate between cells and a complete organ
 * Viable material, capable of living, developing, or germinating under favorable conditions (see Viability selection)

Human-made materials

 * Bio-based material, a processed biotic material
 * Biocomposite, a composite material formed by a matrix (resin) and a reinforcement of natural fibers
 * Biomaterial, any substance that has been engineered to interact with biological systems for a medical purpose