Barnacle: meaning, definitions and examples

marine life

A barnacle is a type of crustacean that typically attaches itself permanently to a hard surface such as rocks, ships, or even whales. They have hard outer shells, often resembling small volcanoes, and they feed by filtering plankton from the water using their feathery appendages. Barnacles are known for their ability to withstand harsh aquatic environments, and can remain attached even in strong currents. Their hard shells can make them difficult to remove and they are often considered pests in marine vessels.

crustacean, filter feeder, marine invertebrate

Examples of usage

• We found several barnacles on the bottom of the boat.

• The whale was covered in barnacles.

• Barnacles can affect the speed of ships.

• They tend to thrive in rocky intertidal areas.