Owner of Jones Mineral Cabinet, Geology and Paleontology Supervisor, interested in Earth and Planetary sciences. #1. Clastic or Detrital Sedimentary Rocks The class(t)ic route begins with the weathering and erosion of sedimentary, igneous, or metamorphic rocks.
A flame retardant is a chemical substance that is added to materials during their manufacturing process in order to both reduce the likelihood of the finished product catching fire and slow down combustion. Source: GreenFacts.
Wiktionary(0.00 / 0 votes)Rate this definition: flame-retardant(Noun) A substance used to make an object flameproof. The flame-retardant used on the child's pajamas would keep them from bursting into flame, but it caused a rash. flame-retardant(Adjective) Used to describe something that is hard to ignite; that does not support or convey flame.