Found 2 items, similar to Man-of-war.
English → English (WordNet) Definition: man-of-war man-of-war n 1: a warship intended for combat [syn: ship of the line] 2: large siphonophore having a bladderlike float and stinging tentacles [syn: Portuguese man-of-war, jellyfish] [also: men-of-war (pl), men-o'-war (pl)]
English → English (gcide) Definition: Man-of-war Man-of-war \Man`-of-war"\, n; pl. Men-of-war. 1. A government vessel employed for the purposes of war, esp. one of large size; a ship of war. [WordNet sense 1] Syn: ship of the line. [1913 Webster] 2. The Portuguese man-of-war. Syn: Syn. --, jellyfish. [WordNet 1.5] Man-of-war hawk (Zo["o]l.), the frigate bird. Man-of-war's man, a sailor serving in a ship of war. Portuguese man-of-war (Zo["o]l.), 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. [1913 Webster]