echinoidadj.n.
/ˈɛkɪnɔɪd/ A. adj.
Bearing a resemblance to, or having the characteristics of, an echinus or sea urchin.
ΚΠ
1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) viii. 208 The fossil species of Crinoid, Asteroid, and Echinoid radiata.
B. n.
An individual of the Order Echinoidea (Class Echinodermata), the characteristics of which are a shell composed of calcareous plates, and locomotion by suckers and spines.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > subphylum Eleutherozoa > class Echinoidea > member of (sea-urchin)
echinusc1374
urchin fish1566
ruffe1591
sea-hedgehog1598
urchin1601
sea urchin1605
sea-bear1611
sea-chestnut1613
sea-thistle1661
sea-apple1666
sea-egg1666
button-fish1668
sea-button1668
urchin-worm1668
whore's egg1674
sea-shilling1713
echinite1750
echinid1835
pancake1843
echinoid1864
oursin1914
kina1960
1864 Reader No. 85. 204/2 Starfishes, echinoids, or ophiurans.
This entry has not yet been fully updated (first published 1891; most recently modified version published online December 2021).
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adj.n.1851