Portuguese Man-of-war Definition
noun
Any of a genus (Physalia) of large, colonial, warm-sea siphonophores having a large, bladderlike sac, with a sail-like structure on top, which enables them to float on the water, and long, dangling tentacles that have powerful stinging cells.
Webster's New World
Used other than as an idiom: see Portuguese,"Ž man-of-war.
Wiktionary
Synonyms:
Other Word Forms of Portuguese Man-of-war
Noun
Singular:
Portuguese man-of-war
Plural:
portuguese-men-of-war
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