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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..

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

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

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

Spatangus :: Spatangus (n.) A genus of heart-shaped sea urchins belonging to the Spatangoidea.

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

Echinus :: Echinus (n.) A genus of echinoderms, including the common edible sea urchin of Europe..

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

Semita :: Semita (n.) A fasciole of a spatangoid 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..

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

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

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..

Sea Egg :: Sea egg () 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..

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..

Aristotle's Lantern :: Aristotle's lantern () The five united jaws and accessory ossicles of certain sea urchins.

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

Urchin :: Urchin (n.) A hedgehog.

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

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