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..

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

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

Pluteus :: Pluteus (n.) The free-swimming larva of sea urchins and ophiurans, having several long stiff processes inclosing calcareous rods..

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

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

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..

Church :: Church (v. t.) To bless according to a prescribed form, or to unite with in publicly returning thanks in church, as after deliverance from the dangers of childbirth; as, the churching of women..

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

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..

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..

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

Clypeastroid :: Clypeastroid (a.) Like or related to the genus Clupeaster; -- applied to a group of flattened sea urchins, with a rosette of pores on the upper side..

Tow-head :: Tow-head (n.) An urchin who has soft, whitish hair..

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..

Echinus :: Echinus (n.) A name sometimes given to the egg and anchor or egg and dart molding, because that ornament is often identified with Roman Doric capital. The name probably alludes to the shape of the shell of the sea urchin..

Urchin :: Urchin (n.) A pert or roguish child; -- now commonly used only of a boy.

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

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

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

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