### Question
What does destructive substance mean?


### Answer
**Destructive substance** has the following meaning in *18 U.S.C. § 31*:

> an explosive substance, flammable material, infernal machine, or other chemical, mechanical, or radioactive device or matter of a combustible, contaminative, corrosive, or explosive nature

#### Citation:
  - *18 U.S.C. § 31*
  - Heading: **PART I-CRIMES > CHAPTER 2-AIRCRAFT AND MOTOR VEHICLES**

