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 echinoderm is as below...

Bivium :: Bivium (n.) One side of an echinoderm, including a pair of ambulacra, in distinction from the opposite side (trivium), which includes three ambulacra..

Starfish :: Starfish (n.) Any one of numerous species of echinoderms belonging to the class Asterioidea, in which the body is star-shaped and usually has five rays, though the number of rays varies from five to forty or more. The rays are often long, but are sometimes so short as to appear only as angles to the disklike body. Called also sea star, five-finger, and stellerid..

Echinozoa :: Echinozoa (n. pl.) The Echinodermata.

Trivium :: Trivium (n.) The three anterior ambulacra of echinoderms, collectively..

Madreporite :: Madreporite (n.) The madreporic plate of echinoderms.

Sublapsarian :: Subkingdom (n.) One of the several primary divisions of either the animal, or vegetable kingdom, as, in zoology, the Vertebrata, Tunicata, Mollusca, Articulata, Molluscoidea, Echinodermata, Coelentera, and the Protozoa; in botany, the Phanerogamia, and the Cryptogamia..

Umbo :: Umbo (n.) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvae of echinoderms or in the tympanic membrane of the ear..

Stelleridan :: Stellerida (n. pl.) An extensive group of echinoderms, comprising the starfishes and ophiurans..

Crinoidea :: Crinoidea (n. pl.) A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula..

Ossicle :: Ossicle (n.) One of numerous small calcareous structures forming the skeleton of certain echinoderms, as the starfishes..

Periproct :: Periproct (n.) The region surrounding the anus, particularly of echinoderms..

Echinoderm :: Echinoderm (n.) One of the Echinodermata.

Asterias :: Asterias (n.) A genus of echinoderms.

Annuloida :: Annuloida (n. pl.) A division of the Articulata, including the annelids and allied groups; sometimes made to include also the helminths and echinoderms..

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

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

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..

Interambulacrum :: Interambulacrum (n.) In echinoderms, one of the areas or zones intervening between two ambulacra. See Illust. of Ambulacrum..

Echinodermata :: Echinodermata (n. pl.) One of the grand divisions of the animal kingdom. By many writers it was formerly included in the Radiata.

Fission :: Fission (n.) A process by which certain coral polyps, echinoderms, annelids, etc., spontaneously subdivide, each individual thus forming two or more new ones. See Strobilation..

Random Fonts

Most Popular