"Intermittent wipers" refers to a feature in car windshield wipers that allows them to pause or pause at different intervals, instead of continuously wiping. Full definition
Such as remote keyless entry, variably intermittent wipers, a trip computer, front bucket seats, lane departure warning, power windows, an overhead console, and air conditioning. (sloanetoyotaphiladelphia.com)
The windshield is large and integrated with a pair of intermittent wipers. (cardekho.com)
It seems to be the natural evolution of the auto industry and I remember at one time intermittent wipers replaced 2 speed systems. (carsguns.com)