(polybutylene) - plastic pipe, usually blue-gray, used for supply lines No longer available and is currently being replaced under a class action lawsuit
a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull gray; "the children were playing with lead soldiers"
An abbreviation for Playback This abbreviation appears next to the input selector switch on each input channel and is used to select the disc signal as the source for the input channel