Drum means any cylindrical metal shipping container of 13 to 110 gallon capacity.
Bulkhead means an airtight structure separating the working chamber from free air or from another chamber under a lower pressure than the working pressure;
E-cigarette means any electronic oral device, such as one composed of a heating element and battery or electronic circuit, or both, which provides a vapor of nicotine or any other substances, and the use or inhalation of which simulates smoking. The term shall include any such device, whether manufactured, distributed, marketed, or sold as an e-cigarette, e-cigar, and e-pipe or under any other product, name, or descriptor.
Splitter means a device used in conjunction with a DSLAM either to combine or separate the high (DSL) and low (voice) frequency spectrums of the Loop in order to provide both voice and data over a single Loop.
Opaque means impenetrable to sight.