Longman Dictionary of Contemporary English
baby carriage
noun
EXAMPLES FROM CORPUS
▪ A baby carriage was overturned, and a heavy rain of black ash descended for a long while afterward.
▪ A charred baby carriage still stood on the altar steps, exactly where it had been found after the massacre.
▪ Death raced downstairs and out the front door to look in the baby carriage under the cherry tree.
▪ Now she is walking toward him, half a block away, pushing a baby carriage.
▪ Two women tore the nylons I was wearing - really good ones - another dragged a baby carriage across my ninety-dollar shoes.
Wiktionary
baby carriage
n. a cart that is designed for moving a baby around in a lying position
WordNet
baby carriage
n : a small vehicle with four wheels in which a baby or child is pushed around [syn: baby buggy, carriage, perambulator, pram, stroller, go-cart, pushchair, pusher]