From The Collaborative International Dictionary of English v.0.48:
Perambulator \Per*am"bu*la`tor\, n. 1. One who perambulates. [1913 Webster]
2. A surveyor's instrument for measuring distances. It consists of a wheel arranged to roll along over the ground, with an apparatus of clockwork, and a dial plate upon which the distance traveled is shown by an index. See Odometer. [1913 Webster]
3. A low carriage for a child, propelled by pushing; a baby carriage; -- called also pram, in Britain. [1913 Webster +PJC]
From The Collaborative International Dictionary of English v.0.48:
Praam \Praam\, n. [D. praam; cf. G. prahm, F. prame; all of Slavonic origin, from a word akin to E. fare. See Fare.] (Naut.) A flat-bottomed boat or lighter, -- used in Holland and the Baltic, and sometimes armed in case of war. [Written also pram, and prame.] [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Pram \Pram\ (pr[a^]m), Prame \Prame\ (pr[=a]m), n. (Naut.) See Praam. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Pram \Pram\ (pr[a^]m), n. a perambulator[3]; -- British informal shortened form. [PJC]