English to English Dictionary -echinoid

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Echinococcus :: Echinococcus (n.) A parasite of man and of many domestic and wild animals, forming compound cysts or tumors (called hydatid cysts) in various organs, but especially in the liver and lungs, which often cause death. It is the larval stage of the Taenia echinococcus, a small tapeworm peculiar to the dog..

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

Echinodermal :: Echinodermal (a.) Relating or belonging to the echinoderms.

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

Echinodermatous :: Echinodermatous (a.) Relating to Echinodermata; echinodermal.

Echinoid :: Echinoid (a.) Of or pertaining to the Echinoidea.

Echinoid :: Echinoid (n.) One of the 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..

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

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.