(n) Two lines in a plane that stay equidistant from each other along their entire logical length. The lines can be straight or curved. Circular curved parallel lines share the same center point and are referred to as concentric.
Parallel Lines, released in 1978, was the third album from the band Blondie, and also their most popular and best selling. It was the first album to be produced by Mike Chapman, who continued producing the band's albums until The Hunter in 1982. The album reached number 1 in the United Kingdom in September 1978 and has one of the most recognised and era-defining album covers of all time.