Definitions for "Polarized Plug"
Keywords:  prong, receptacle, plug, wider, blade
the odd prong on a plug we like to shave down or clip off, right? - not supposed to! - it's supposed to only go into a receptacle in only one way
a plug with one large or wide prong and one narrow one
Plug on portable lighting item with different shaped prongs to ensure that the hot and neutral wires can't be reversed