A government vessel employed for the purposes of war, esp. one of large size; a ship of war.
Synonyms:ship of the line.
2.
The Portuguese man-of-war.
Synonyms:, jellyfish.
Man-of-war hawk (Zool.), the frigate bird.
Man-of-war's man, a sailor serving in a ship of war.
Portuguese man-of-war (Zool.), any species of the genus Physalia; it is a hydrozoan having both medusa and polyp stages present in a single colony. It floats on the surface of the sea by a buoyant bladderlike structure, from which dangle multiple long tentacles with stinging cells. Its can cause severe rashes when it comes in contact with humans swimming in the area. See Physalia.
... sail was hoisted by a savage hand, the little Portuguese man-of-war, that frailest and most graceful nautilus boat, had skimmed over the seas with all its feathery sails set in the pleasant breeze; and before the great British Admiralty marked its anchors with the Broad Arrow, mussels and pinna had been accustomed to anchor themselves by flukes ... — The Continental Monthly, Vol 3 No 3, March 1863 - Devoted To Literature And National Policy • Various
... and a Portuguese man-of-war was sent out to cruise. Kid met with her, and fought her about six hours, gallantly enough; but finding her too strong to be taken, he quitted her, for he was able to run away from her when he would. Then he went to a place called Porco, where he watered the ship, ... — Great Pirate Stories • Various