In these regulations, unless the context otherwise requires,—
cavity, in relation to a microwave oven, means that area of the oven in which the microwave field is enclosed and confined
interlock, in relation to a microwave oven, means a component or set of components that prevents the generation of microwave power when access to the cavity of the oven is possible
microwave means an electromagnetic wave with a frequency in the range of 3 × 102 to 1 × 105 megahertz
microwave oven means an appliance that—
sell includes hire, lease, lend, and give
use means operate for any purpose other than the carrying out of any test required by these regulations.