A horse which draws a cart; a horse bred or used for drawing heavy loads; -- also spelled carthorse.(noun)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "cart horse" in a sentence
"Old Dobson, the chief packer, a bull-necked individual with arms like the forelegs of a cart horse and a red rim round his head where a cap had sat, took the head of the improvised stretcher, while the foot was supported by a Mr. Peter Rigget from the Accounts Department."