| That means that a chemical reaction creates heat and the rags can begin to smolder and burst into flame. |
| The embers of his half-smoked cigarette caught the pages of his pilot, which began to smolder and, in time, burn. |
| Shin Fuji probably first became active about 10,000 years ago and has continued ever since to smolder or erupt occasionally. |
| If the fire goes out and begins to smolder, there's too little combustion air entering the firebox. |
| She is small and blond and snub-nosed, but she knows how to smolder icily and this dissonance is what makes her special. |
| Aurora clung even closer to Nathan after the encounter with Sylvia, and Ella's eyes seemed to smolder with jealousy. |
