"matrix material" refers to the substance or material that holds or surrounds something else. It provides a support structure or framework for other elements to exist or work within. Full definition
We recommend high intakes of extracellular matrix material in soups and stews. (perfecthealthdiet.com)
A spun matrix material called NaturesWeave ™ provides an open air construction that dissipates heat, for the perfect combination of airflow and pressure relief, ideal for toddlers. (colgatekids.com)
We were the first in the U.S. to use NaturesNest ™, a spun matrix material made from recycled materials that is also 100 % recyclable. (colgatekids.com)