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...

Micraster :: Micraster (n.) A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; -- from the starlike disposal of the ambulacral furrows..

Urchin :: Urchin (n.) A sea urchin. See Sea urchin.

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

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

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..

Repkie :: Repkie (n.) Any edible sea urchin.

Galerite :: Galerite (n.) A cretaceous fossil sea urchin of the genus Galerites.

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

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

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

Urchin :: Urchin (n.) A mischievous elf supposed sometimes to take the form a hedgehog.

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

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..

Coronal :: Coronal (a.) Of or pertaining to the shell of a sea urchin.

Scrobicula :: Scrobicula (n.) One of the smooth areas surrounding the tubercles of a sea urchin.

Sea Egg :: Sea egg () A sea urchin.

Piper :: Piper (n.) A sea urchin (Goniocidaris hystrix) having very long spines, native of both the American and European coasts..

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

Rosette :: Rosette (n.) Any structure having a flowerlike form; especially, the group of five broad ambulacra on the upper side of the spatangoid and clypeastroid sea urchins. See Illust. of Spicule, and Sand dollar, under Sand..

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

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