What does the word perambulator mean?

Usage examples for perambulator

  1. And when the nurse took away the perambulator the little boy wrote to his father to ask what he should do and his father wrote to him that he would put one of his brothers in charge who would know how to do what the nurse wanted." – The Altar Steps by Compton MacKenzie
  2. And now what is the perambulator? – The Altar Steps by Compton MacKenzie
  3. Inside the perambulator is a child of three years or so. – Leaves in the Wind by A. G. Gardiner