perambulator 

Urban child transportation vehicle operating on 4 wheels or more.

Johnny was hit by a perambulator when he was a child.

perambulator by Miller August 30, 2003

perambelation

That feeling of euphoria induced by a particularly lovely or particularly needed walk.

After a week of rain, Julie was consumed with a sense of perambelation as she walked the shiny streets for her afternoon coffee.

perambelation by RulerofAustralia March 20, 2011