Foam 1 : A chemical fire-extinguishing mixture. It attaches to fuels, cooling and moistening them. It also keeps oxygen from the fuel; eliminating one of the items fire needs to burn
The Virginia Department of Forestry VDOF, Glossary, Forest Protection and Fire Prevention, Department of Forestry Central Office, Fontaine Research Park, Charlottesville, Virginia, USA 2012. http://www.dof.virginia.gov/fire/glossary.shtml, (For Fr - Amer) {481}