herald (plural heralds) 1  A messenger, especially one bringing important news. 2  A harbinger, giving signs of things to come. ( 3 heraldry) An official whose speciality is heraldry, especially one between the ranks of pursuivant and king-of-arms. ( entomology) A moth of the species Scoliopteryx libatrix.
a fire nozzle weighs approximately  ten to fifteen pounds.
Full Answer. A gallon of gasoline weighs roughly 6.3 pounds, depending on the density of the gasoline. If using the metric system, the approximate mass of gasoline is 2.8 to 2.9 kilograms, depending on its density. Gasoline is approximately 87 percent carbon and 13 percent hydrogen by weight. When gasoline is burned, it produces 20 pounds of carbon dioxide.