Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of urchin is as below...

Unkempt :: Unkempt (a.) Not combed; disheveled; as, an urchin with unkempt hair..

Regularia :: Regularia (n. pl.) A division of Echini which includes the circular, or regular, sea urchins..

Petalosticha :: Petalosticha (n. pl.) An order of Echini, including the irregular sea urchins, as the spatangoids. See Spatangoid..

Urchon :: Urchon (n.) The urchin, or hedgehog..

Fasciole :: Fasciole (n.) A band of minute tubercles, bearing modified spines, on the shells of spatangoid sea urchins. See Spatangoidea..

Urchin :: Urchin (n.) One of a pair in a series of small card cylinders, arranged around a carding drum; -- so called from its fancied resemblance to the hedgehog..

Sea Urchin :: Sea urchin () Any one of numerous species of echinoderms of the order Echinoidea.

Paleechinoidea :: Paleechinoidea (n. pl.) An extinct order of sea urchins found in the Paleozoic rocks. They had more than twenty vertical rows of plates. Called also Palaeechini.

Jewstone :: Jewstone (n.) A large clavate spine of a fossil sea urchin.

Corona :: Corona (n.) The shelly skeleton of a sea urchin.

Turban-shell :: Turban-shell (n.) A sea urchin when deprived of its spines; -- popularly so called from a fancied resemblance to a turban.

Tangle :: Tangle (v.) An instrument consisting essentially of an iron bar to which are attached swabs, or bundles of frayed rope, or other similar substances, -- used to capture starfishes, sea urchins, and other similar creatures living at the bottom of the sea..

Spatangoidea :: Spatangoidea (n. pl.) An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side..

Urchin :: Urchin (a.) Rough; pricking; piercing.

Sphaeridium :: Sphaeridium (n.) A peculiar sense organ found upon the exterior of most kinds of sea urchins, and consisting of an oval or sherical head surmounting a short pedicel. It is generally supposed to be an olfactory organ..

Siphon :: Siphon (n.) A tubular organ connected both with the esophagus and the intestine of certain sea urchins and annelids.

Auricula :: Auricula (n.) One of the five arched processes of the shell around the jaws of a sea urchin.

Lurching :: Lurching (p. pr. & vb. n.) of Lurc.

Sea Hedgehog :: Sea hedgehog () A sea urchin.

Lithophagous :: Lithophagous (a.) Eating or destroying stone; -- applied to various animals which make burrows in stone, as many bivalve mollusks, certain sponges, annelids, and sea urchins. See Lithodomus..

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