Definition of urchin

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

Lern More About Urchin

Scrobicula :: Scrobicula (n.) One of the smooth areas surrounding the tubercles of 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..
Turban-shell :: Turban-shell (n.) A sea urchin when deprived of its spines; -- popularly so called from a fancied resemblance to a turban.
Repkie :: Repkie (n.) Any edible sea urchin.
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..
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..
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.
Tow-head :: Tow-head (n.) An urchin who has soft, whitish hair..
Echinus :: Echinus (n.) A genus of echinoderms, including the common edible sea urchin of Europe..
Urchin :: Urchin (n.) A pert or roguish child; -- now commonly used only of a boy.
Urchin :: Urchin (n.) A mischievous elf supposed sometimes to take the form a hedgehog.
Spatangus :: Spatangus (n.) A genus of heart-shaped sea urchins belonging to the Spatangoidea.
Urchin :: Urchin (a.) Rough; pricking; piercing.
Churching :: Churching (p. pr. & vb. n.) of Churc.
Jewstone :: Jewstone (n.) A large clavate spine of a fossil sea urchin.
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..
Aristotle's Lantern :: Aristotle's lantern () The five united jaws and accessory ossicles of certain sea urchins.
Sea Hedgehog :: Sea hedgehog () A sea urchin.
Galerite :: Galerite (n.) A cretaceous fossil sea urchin of the genus Galerites.
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