Por·tu·guese man-of-war .pȯr-chə-.gēz-.man-əv-'wȯr n, pl Portuguese man-of-wars -'wȯrz also Portuguese men-of-war -.men-əv-'wȯr any siphonophore of the genus Physalia including large tropical and subtropical oceanic forms having a crested bladderlike float which bears a colony comprised of three types of zooids on the lower surface with one of the three having stinging tentacles
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Por·tu·guese man-of-war (porґchə-gēs) any cnidarian of the genus Physalia.Medical dictionary. 2011.