Definition of urchin

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

Lern More About Urchin

Piper :: Piper (n.) A sea urchin (Goniocidaris hystrix) having very long spines, native of both the American and European coasts..
Urchin :: Urchin (n.) A sea urchin. See Sea urchin.
Jewstone :: Jewstone (n.) A large clavate spine of a fossil sea urchin.
Urchin :: Urchin (n.) A mischievous elf supposed sometimes to take the form a hedgehog.
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..
Galerite :: Galerite (n.) A cretaceous fossil sea urchin of the genus Galerites.
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..
Urchin :: Urchin (a.) Rough; pricking; piercing.
Echinus :: Echinus (n.) A genus of echinoderms, including the common edible sea urchin of Europe..
Aristotle's Lantern :: Aristotle's lantern () The five united jaws and accessory ossicles of certain sea urchins.
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..
Urchin :: Urchin (n.) A pert or roguish child; -- now commonly used only of a boy.
Sea Hedgehog :: Sea hedgehog () A sea urchin.
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..
Echinoidea :: Echinoidea (n. pl.) The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid..
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..
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.
Tow-head :: Tow-head (n.) An urchin who has soft, whitish hair..
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