Echinodermatan.

Brit.

/ᵻˌkʌɪnə(ʊ)dəːˈmɑːtə/,

/ˌɛkɪnə(ʊ)ˈdəːmətə/, U.S.

/əˌkaɪnəˈdərmədə/,

/ˌɛkɪnəˈdərmədə/

Origin: A borrowing from Latin. Etymon: Latin echinodermata.

Etymology: < post-classical Latin echinodermata, plural of echinoderma , spiny-skinned marine animal, sea urchin ( J. T. Klein Naturalis dispositio Echinodermatum (1734) 9) < classical Latin echino- echino- comb. form + derma derma n. Compare Echinoderma n.Compare:1910 Encycl. Brit. VIII. 871/2 (note) [Echinoderma is] sometimes called ‘Echinodermata’, a Greek name meaning ‘sea-urchin-skins’, which was invented by J. T. Klein (1734) to denote the tests of the Echini or sea-urchins; its later use for the animals themselves, or for the whole phylum, was an error in both history and etymology.

Zoology.

†1. With plural agreement (in form echinodermata). Sea urchins; the group of marine invertebrates that comprises these. Obsolete.

ΚΠ

1753 Chambers's Cycl. Suppl. Turban-Shell, Cidaris,..the name of a genus of the echinodermata.

?1787 W. F. Mavor New Dict. Nat. Hist. Discoides Fibula, a genus of the echinodermata, or sea hedge-hogs.

2. With plural (or occasionally singular) agreement: a large phylum that comprises the starfishes, sea urchins, brittlestars, crinoids, and sea cucumbers, which are characterized by fivefold radial symmetry, an internal calcareous skeleton, and tube feet operated by fluid pressure. Also with plural agreement (also in form echinodermata): animals of this group (collectively or individually); echinoderms.The Echinodermata have a rich fossil history, and as deuterostomes, constitute a sister group to the chordates. They were formerly regarded as a class of the division Radiata or of the subkingdom Annuloida.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun]

Echinodermata1826

Echinoderma1833

1826 Edinb. New Philos. Jrnl. 1 296 In the echinodermata the organ of respiration first appears.

1878 Ann. & Mag. Nat. Hist. 1 181 (title) On the Orthonectida, a new class of animals parasitic on Echinodermata and Turbellaria.

1909 Cent. Dict. Suppl. Axial organ, a structure of enigmatic function found in the axial sinus of Echinodermata, exclusive of Holothuroidea.

1940 G. S. Carter Gen. Zool. Invertebr. xii. 233 The Echinodermata, Rotifera, Nematoda, Polyzoa and many larvæ of annelids, molluscs and other groups are of this type of organisation.

1971 Biol. Bull. 141 167 The distribution of the two phosphagens in representative species of four major classes of the Echinodermata..were examined.

2003 New Scientist 26 July 32/2 Garstang needed to find the most ‘basal’ member of the Echinodermata—the one that had been around the longest.

Derivatives

† echinodermatous adj. Obsolete = echinodermal adj.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > belonging to or resembling echinoderms

echinodermatous1825

echinodermal1843

echinoderm1857

1825 Edinb. Jrnl. Sci. 2 77 Of the echinodermatous Radiaria which inhabit the Frith of Forth [sic], the most frequent are the different species of Asterias and Ophiura.

1835–6 Todd's Cycl. Anat. & Physiol. I. 109/2 Some marine animals without an echinodermatous covering.

1853 R. Chambers Vestiges Nat. Hist. Creation (ed. 10) 190 It is probable that in the polypiaria is the origin of the echinodermatous line.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online June 2022).

单词	echinodermata
释义	Echinodermatan. Brit. /ᵻˌkʌɪnə(ʊ)dəːˈmɑːtə/, /ˌɛkɪnə(ʊ)ˈdəːmətə/, U.S. /əˌkaɪnəˈdərmədə/, /ˌɛkɪnəˈdərmədə/ Origin: A borrowing from Latin. Etymon: Latin echinodermata. Etymology: < post-classical Latin echinodermata, plural of echinoderma , spiny-skinned marine animal, sea urchin ( J. T. Klein Naturalis dispositio Echinodermatum (1734) 9) < classical Latin echino- echino- comb. form + derma derma n. Compare Echinoderma n.Compare:1910 Encycl. Brit. VIII. 871/2 (note) [Echinoderma is] sometimes called ‘Echinodermata’, a Greek name meaning ‘sea-urchin-skins’, which was invented by J. T. Klein (1734) to denote the tests of the Echini or sea-urchins; its later use for the animals themselves, or for the whole phylum, was an error in both history and etymology. Zoology. †1. With plural agreement (in form echinodermata). Sea urchins; the group of marine invertebrates that comprises these. Obsolete. ΚΠ 1753 Chambers's Cycl. Suppl. Turban-Shell, Cidaris,..the name of a genus of the echinodermata. ?1787 W. F. Mavor New Dict. Nat. Hist. Discoides Fibula, a genus of the echinodermata, or sea hedge-hogs. 2. With plural (or occasionally singular) agreement: a large phylum that comprises the starfishes, sea urchins, brittlestars, crinoids, and sea cucumbers, which are characterized by fivefold radial symmetry, an internal calcareous skeleton, and tube feet operated by fluid pressure. Also with plural agreement (also in form echinodermata): animals of this group (collectively or individually); echinoderms.The Echinodermata have a rich fossil history, and as deuterostomes, constitute a sister group to the chordates. They were formerly regarded as a class of the division Radiata or of the subkingdom Annuloida. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] Echinodermata1826 Echinoderma1833 1826 Edinb. New Philos. Jrnl. 1 296 In the echinodermata the organ of respiration first appears. 1878 Ann. & Mag. Nat. Hist. 1 181 (title) On the Orthonectida, a new class of animals parasitic on Echinodermata and Turbellaria. 1909 Cent. Dict. Suppl. Axial organ, a structure of enigmatic function found in the axial sinus of Echinodermata, exclusive of Holothuroidea. 1940 G. S. Carter Gen. Zool. Invertebr. xii. 233 The Echinodermata, Rotifera, Nematoda, Polyzoa and many larvæ of annelids, molluscs and other groups are of this type of organisation. 1971 Biol. Bull. 141 167 The distribution of the two phosphagens in representative species of four major classes of the Echinodermata..were examined. 2003 New Scientist 26 July 32/2 Garstang needed to find the most ‘basal’ member of the Echinodermata—the one that had been around the longest. Derivatives † echinodermatous adj. Obsolete = echinodermal adj. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > belonging to or resembling echinoderms echinodermatous1825 echinodermal1843 echinoderm1857 1825 Edinb. Jrnl. Sci. 2 77 Of the echinodermatous Radiaria which inhabit the Frith of Forth [sic], the most frequent are the different species of Asterias and Ophiura. 1835–6 Todd's Cycl. Anat. & Physiol. I. 109/2 Some marine animals without an echinodermatous covering. 1853 R. Chambers Vestiges Nat. Hist. Creation (ed. 10) 190 It is probable that in the polypiaria is the origin of the echinodermatous line. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online June 2022). < n.1753
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