A yacht propelled by steam, or by steam and sails.(noun)
The Century Dictionary (Public Domain)
Use "steam-yacht" in a sentence
"“Because the ‘Duncan’ is a steam-yacht, and I cannot perceive any trace of smoke either above or near that vessel.”"
"About half-way between the Florida shore and the golden collar a white steam-yacht, very young and graceful, was riding at anchor and under a blue-and-white awning aft a yellow-haired girl reclined in a wicker settee reading The Revolt of the Angels, by"
"Judy knew it must be “horrid” for poor Lily to have to stop to consider whether she could afford real lace on her petticoats, and not to have a motor-car and a steam-yacht at her orders; but the daily friction of unpaid bills, the daily nibble of small temptations to expenditure, were trials as far out of her experience as the domestic problems of the charwoman."