Biomass is the material derived from recently living organisms, which includes plants, animals and their byproducts.

These materials derived from methane probably account for the dark coloring of the deposits.

Even the buildings are created only with the purest materials derived from the highest qualities of mind.

Another showed that some commercial kit suppliers had also allowed their materials to be contaminated by material derived from mice.

We have previously seen these peaks in material derived from human antrum where they are generally less than 5% of the total.

Plastic is the generic name for a family of synthetic materials derived from petrochemicals.

Bakelite was a purely synthetic material, not derived from living matter.

But they started with genetic material derived from a natural virus.

An animal product is any material derived from the body of an animal.

The house is constructed of mass concrete made of local lime and the materials derived from the site.