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 echini is as below...

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.

Echinital :: Echinital (a.) Of, or like, an echinite..

Echinidan :: Echinidan (n.) One the Echinoidea.

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

Galea :: Galea (n.) A genus of fossil echini, having a vaulted, helmet-shaped shell..

Echinite :: Echinite (n.) A fossil echinoid.

Petal :: Petal (n.) One of the expanded ambulacra which form a rosette on the black of certain Echini.

Miliary :: Miliary (n.) One of the small tubercles of Echini.

Echinid :: Echinid (a. & n.) Same as Echinoid.

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

Echini :: Echini (pl. ) of Echinu.

Miliary :: Miliary (a.) Small and numerous; as, the miliary tubercles of Echini..

Pedicellaria :: Pedicellaria (n.) A peculiar forcepslike organ which occurs in large numbers upon starfishes and echini. Those of starfishes have two movable jaws, or blades, and are usually nearly, or quite, sessile; those of echini usually have three jaws and a pedicel. See Illustration in Appendix..

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