1 Cinquains are five lines long. 2  They have 2 syllables in the first line, 4 in the second, 6 in the third, 8 in the fourth line, and just 2 in the last line. 3  Cinquains do not need to rhyme, but you can include rhymes if you want to.
â¢ COMBUSTIBLE MATERIAL (noun). The noun COMBUSTIBLE MATERIAL has 1 sense: 1. a substance that can be burned to provide heat or power. Familiarity information: COMBUSTIBLE MATERIAL used as a noun is very rare. COMBUSTIBLE MATERIAL (noun). The noun COMBUSTIBLE MATERIAL has 1 sense: 1. a substance that can be burned to provide heat or power. Familiarity information: COMBUSTIBLE MATERIAL used as a noun is very rare.
Definitions: Solid materials that pose a serious risk of fire in uncontrolled conditions. The hazard class is divided into three broad categories. Subsets of class 4 are: 4.1 Flammable Solids are readily combustible, or may contribute to a fire through friction. 4.2 Spontaneously Combustible materials (also called substances liable to spontaneous combustion) are liable to spontaneous generation of heat during transportation which can then lead to a fire.