cirriped

/ˈsɪrəpɛd/
noun
  1. A marine crustacean of the class Cirripedia, such as a barnacle, that has a hard shell and attaches itself permanently to surfaces like rocks, ships, or whales.
    • Scientists study cirripeds to understand how they attach to surfaces underwater.
    • The boat's hull was covered with cirripeds that had to be scraped off.
    • A cirriped feeds by extending feathery legs into the water to catch plankton.
Synonyms
What does "cirriped" mean? | whatsthatwordmean | whatsthatwordmean