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 sea urchin is as below...

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

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

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

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

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

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

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

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

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

Fasciole :: Fasciole (n.) A band of minute tubercles, bearing modified spines, on the shells of spatangoid sea urchins. See Spatangoidea..

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

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

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..

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

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

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

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

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

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..

Random Fonts

Most Popular