About The Word Echinodermata
Learn about the word Echinodermata to help solve your crossword puzzle. Discover Echinodermata definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Echinodermata
| Echinodermata Definition And Meaning |
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What's The Definition Of Echinodermata?
[n] radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers
Synonyms | Synonyms for Echinodermata: phylum Echinodermata Related Terms | Find terms related to Echinodermata: See Also | animal kingdom | Animalia | Asteroidea | class Asteroidea | class Crinoidea | class Echinoidea | class Holothuroidea | class Ophiuroidea | Crinoidea | echinoderm | Echinoidea | Holothuroidea | kingdom Animalia | Ophiuroidea | phylum Echinodermata In Webster's Dictionary \E*chi`no*der"ma*ta\
([-e]*k[imac]`n[-o]*d[~e]r"m[.a]*t[.a]), n. pl. [NL., fr. Gr.
'echi^nos hedgehog, sea urchin + de`rma, -atos, skin.]
(Zo["o]l.)
One of the grand divisions of the animal kingdom. By many
writers it was formerly included in the Radiata. [Written
also {Echinoderma}.]
Note: The species usually have an exterior calcareous
skeleton, or shell, made of many pieces, and often
covered with spines, to which the name. They may be
star-shaped, cylindrical, disk-shaped, or more or less
spherical. The body consists of several similar parts
(spheromeres) repeated symmetrically around a central
axis, at one end of which the mouth is situated. They
generally have suckers for locomotion. The group
includes the following classes: Crinoidea, Asterioidea,
Ophiuroidea, Echinoidea, and Holothurioidea. See these
words in the Vocabulary, and also {Ambulacrum}.
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