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Related Terms:
clavula
sea hedgehog
echinoidea
falx
wheel urchin
echinoid
semita
kina
tolloid
galerite
pedicellaria
clypeastroid
apatopygid
rosette
cidaroid
apextrin
keyhole urchin
sand dollar
heart urchin
echinacean
aristotle's lantern
urchin
fasciole
jewstone
hurcheon
holasteroid
radiole
diadematoid
echinothurioid
sphaeridium
acanthology
sea urchins
histocidarid
piper
lithophagous
bindin
atelostomate
marine
uni
cassiduloid
echino
scrobicula
echinus
miliary
echinoderm
nano urchin
epiphysis
urchinlike
rotula
cidarid
chewing
needle shell
test
Definitions:
Noun
sea urchin
Definition: shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
Definition: Any of many marine echinoderms, of the class Echinoidea, commonly found in shallow water, having a complex chewing structure named Aristotle's lantern.