Definition

1. Noun:
   • A large, colonial marine organism: The Portuguese man-of-war is not a single animal but a siphonophore, a colony of specialized individual organisms working together as one unit.
   • Characterized by a distinctive float and stinging tentacles: It has a gas-filled bladder that sits above the water surface, resembling an old warship's sail, and long, trailing tentacles equipped with powerful stinging cells.

Usage Examples

• Noun:
  • We saw a Portuguese man-of-war washed up on the beach.
  • The sting from a Portuguese man-of-war can be very painful and dangerous to humans.
  • Despite its jellyfish-like appearance, the Portuguese man-of-war is a siphonophore.

Advanced Usage

• Scientific context: Often discussed in marine biology for its colonial nature and potent venom.
  • The study focused on the nematocysts of the Portuguese man-of-war.
• As a hazard warning: Commonly used in safety advisories for swimmers and beachgoers.
  • Lifeguards posted flags warning of Portuguese man-of-war in the water.

Variants and Related Words

• Man-of-war: A shorter, informal variant. (Note: This can also refer to a type of historical warship.)
  • Several men-of-war were spotted along the coast.
• Bluebottle: A common name used in some regions, particularly Australia and the Pacific, for the same or similar species.
  • The bluebottle is known for its painful sting.

Synonyms

• Siphonophore: The biological order to which it belongs.
• Colonial hydrozoan: A more technical term describing its biological structure.

Related Phrases

• Portuguese man-of-war sting: Refers specifically to the injury caused by contact.
  • First aid for a Portuguese man-of-war sting involves rinsing with vinegar.

Noun

1. large siphonophore having a bladderlike float and stinging tentacles