DCHP-1 Online
train dog Hist. 
a dog employed in a dog-team.
See also: dog-team train ((2)) (def. 1b)
- 1881 The government's train dogs at Fort Saskatchewan made a raid on S. Taber's meat house one day last week and made away with the greater portion of his stock of beef.
- 1910 . . . so the body was placed on a rough prospector's toboggan, drawn by six train dogs.
- 1938 Nearby crouched the train dogs--waiting. . . .
- 1881 The government's train dogs at Fort Saskatchewan made a raid on S. Taber's meat house one day last week and made away with the greater portion of his stock of beef.