Denatured Alcohol : Alcohol to which pyridine or other denaturants have been added to make it unfit for human consumption; it is used in making antifreeze solutions
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}