What does cirriped mean?
A cirriped is any member of Cirripedia, a subclass of marine crustaceans best represented by the familiar barnacles. Unlike most crustaceans, adult cirripeds live fastened permanently — head-downward — to hard surfaces such as rocks, ship bottoms, piers, and even whales, secreting a cement-like adhesive that ranks among the strongest natural glues known. They feed by sweeping their feathery legs through the water to filter plankton. The word comes from the Latin cirrus, meaning a curl or fringe, and pes, foot, referring to those curling feeding limbs. Though "barnacle" serves perfectly well in everyday speech, "cirriped" remains the preferred term in scientific writing, and it carries historical weight: Charles Darwin spent nearly a decade cataloguing these animals, work that shaped his thinking on evolution.
nounA cirriped is a marine crustacean of the subclass Cirripedia, such as a barnacle, which typically attaches itself permanently to rocks, ships' hulls, or other surfaces by means of its head and feeds using feathery, hair-like appendages.
- A marine crustacean of the subclass Cirripedia (such as a barnacle), which attaches permanently to submerged surfaces and feeds with feather-like appendages.
"The hull was so densely crusted with cirripeds that divers were called in to scrape them away before they slowed the ship further."
"Whale lice and cirripeds often colonize the same patch of whale skin, each exploiting the host in its own way."
"In his monograph on living and fossil cirripeds, Darwin described dozens of previously unknown species."
The plural is regular. In formal scientific writing, the plural "cirripedes" (following the French-influenced variant) also appears.
"Cirripeds settle on almost any hard surface exposed to seawater."
Charles Darwin devoted eight years of his life to studying these creatures — so many barnacles that he joked no one would ever again speak ill of him, since every naturalist would be obliged to know his name through them.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cirriped
The word "cirriped" derives from the New Latin taxonomic name Cirripedia, formed from the Latin cirrus, meaning a curl or tuft of hair, and pes (stem ped-), meaning foot — an allusion to the animal's curling, fringe-like appendages used in feeding. The English noun was adopted into scientific vocabulary in the early nineteenth century alongside the variant form "cirripede." It shares its roots with other Latinate terms built on cirrus and ped-, such as "cirrus" clouds and words like "centipede" and "impede," all ultimately tracing back to the Latin root ped- for foot.
Related word forms
How cirriped is actually used
"Cirriped" is chiefly used in zoology and marine biology; "barnacle" is the common everyday term. The variant spellings "cirripede" and, less commonly, "cirrhipede" appear in older scientific literature.