amphotonia
Alternative form of amphotony.

apodacean
Any holothurian of the subclass Apodacea

asteria
plural of asterion

asterias
A sea star.

asteriases
plural of asterias

asterites
plural of asterite

astropecten
Any of the genus Astropecten of sea stars.

astropectens
plural of astropecten

astrophyton
The giant basket star, an early Mesozoic invertebrate.

astrophytons
plural of astrophyton

basket star
Any brittle star with many-branched arms, that live in deep-sea habitats, principally in family Gorgonocephalidae, of order Euryalida or of suborder Euryalina in order Phrynophiurida.

basket stars
plural of basket star

bat star
A species of starfish, Patiria miniata, characterised by webbing between its arms.

bipinnaria
The larva of certain starfishes as developed in the free-swimming stage.

black sea cucumber
A sea cucumber found in shallow waters of the eastern Atlantic Ocean and the Mediterranean Sea, Holothuria forskali.

black teatfish
A sea cucumber of species Holothuria nobilis.

bottonia
plural of bottonium

brittle star
Any of various echinoderms, of the class Ophiuroidea, that resemble starfish and have long, slender arms that regenerate when snapped off.

brittle stars
plural of brittle star

brittlestar
Alternative spelling of brittle star.

brittlestars
plural of brittlestar

chalkfish
The sandfish Bohadschia similis
Alternative form of chalk fish.

chalkfishes
plural of chalkfish

comatula
A feather star of the genus Comatula.

comatulae
plural of comatula

comatulas
plural of comatula

cotton-spinner
Synonym of black sea cucumber.

cribella
plural of cribellum

crinoid
One of the numerous animals that make up the class Crinoidea; the feather stars or sea lilies.

crinoids
plural of crinoid

cruces
plural of crux

crux
The basic, central, or essential point or feature.
The critical or transitional moment or issue, a turning point.
A puzzle or difficulty.
The hardest point of a climb.
A cross on a coat of arms.

cruxes
plural of crux

curryfish
The sea cucumber Stichopus herrmanni

cushion star
A starfish of the genus Culcita.

diplopodia
A congenital anomaly in tetrapods that involves duplication of elements of the foot on the hind limb.

diplopodias
plural of diplopodia

disaster
An unexpected natural or man-made catastrophe of substantial extent causing significant physical damage or destruction, loss of life or sometimes permanent change to the natural environment.
An unforeseen event causing great loss, upset or unpleasantness of whatever kind.
A skateboard trick involving a 180-degree ollie, landing on the center of the board with the front trucks facing towards the ramp and the back trucks over the lip. The skater then leans forwards to return in the ramp.

disasters
plural of disaster

disastre
Archaic form of disaster.

disastres
plural of disastre

dragonfish
Any of several long, slender fishes, of the family Stomiidae, that have a luminous barbel used to attract prey.
Other fish thought to resemble dragons or fish of the family Stomiidae:
Other fish thought to resemble dragons or fish of the family Stomiidae:
Other fish thought to resemble dragons or fish of the family Stomiidae:
Other fish thought to resemble dragons or fish of the family Stomiidae:
Other fish thought to resemble dragons or fish of the family Stomiidae:
Other fish thought to resemble dragons or fish of the family Stomiidae:
Other fish thought to resemble dragons or fish of the family Stomiidae:

dragonfishes
plural of dragonfish

echini
plural of echinus

echinus
A sea urchin.
The rounded moulding forming the bell of the capital of the Grecian Doric style, which is of a peculiar elastic curve.
The quarter-round moulding (ovolo) of the Roman Doric style.
The egg-and-anchor or egg-and-dart moulding, because often identified with the Roman Doric capital.

echinuses
plural of echinus

ecodisasters
plural of ecodisaster

elephant trunkfish
A species of large sea cucumber, Holothuria fuscopunctata, native to shallow waters in the tropical Indo-Pacific.

encrini
plural of encrinus

encrinus
Any of a genus Encrinus of fossil encrinoidea from the Mesozoic rocks.

endoplastule
A nucleolus.

feather star
An unstalked crinoid, a comatulid.

feather stars
plural of feather star

fibularia
plural of fibulare

galerites
plural of galerite

giant star
A star that has stopped fusing hydrogen in its core, and as a result has grown much larger and brighter; it is considerably more luminous than a main sequence star of the same temperature.

heart urchin
Any echinoderm of the class Spatangoida.

heart urchins
plural of heart urchin

holothure
Synonym of sea cucumber.

holothures
plural of holothure

kina
The national currency of Papua New Guinea, divided into 100 toea.

kinas
plural of kina

marsupites
plural of marsupite

megadisasters
plural of megadisaster

micraster
Any of the extinct genus †Micraster of infaunal echinoids.

micrasters
plural of micraster

minidisasters
plural of minidisaster

monaster
The single aster formation that forms at the equatorial plate at the end of metaphase in mitosis.

monasters
plural of monaster

nucleole
Alternative form of nucleolus.

nucleoles
plural of nucleole

nucleoli
plural of nucleolus

nucleolus
A conspicuous, rounded body within the nucleus of a cell.

ova
plural of ovum (“gamete”)

ovaling
Alternative form of ovalling.

pentacrinites
plural of pentacrinite

pinkfish
The fish Holothuria edulis.

pseudonuclei
plural of pseudonucleus

radioli
plural of radiolus

radiolus
The barbule of a feather

rotula
The patella; the kneecap.
One of the five radial pieces in the dentary apparatus of the sea urchin.

rotulae
plural of rotula

rotulas
plural of rotula

sand dollar
Any echinoderm of the order Clypeasteroida, having a flat, disk-shaped body with the mouth in a mid-ventral position, and living in sand, on or near the surface.

sand dollars
plural of sand dollar

sand star
Luidia foliolata, a starfish in the family Luidiidae, found in the northeastern Pacific Ocean.

sandfish
Any of genus Gonorynchus (also called beaked sandfishes), long, thin ray-finned fishes (family Gonorychidae)
Any of several marine fishes that burrow into sandy seabeds
Any of several marine fishes that burrow into sandy seabeds
Any of several marine fishes that burrow into sandy seabeds
Any of several marine fishes that burrow into sandy seabeds
Other animals that notably burrow in sand:
Other animals that notably burrow in sand:

sandfishes
plural of sandfish

scutel
Obsolete form of scutella.

scutella
plural of scutellum

scutellae
plural of scutella

scutels
plural of scutel

scutulum
A yellow perifollicular saucer- or cup-shaped crust with a cheesy odour, composed of dense mats of mycelia and epithelial debris, often occurring on the scalp and characteristic of favus.

sea biscuit
Synonym of cake urchin.
Synonym of hardtack.

sea biscuits
plural of sea biscuit

sea cucumber
An echinoderm of the class Holothuroidea, with an elongated body and leathery skin.

sea cucumbers
plural of sea cucumber

sea egg
Synonym of sea urchin.

sea feather
Any of a number of gorgonians (corals) that branch out in a plume-like form.

sea gherkin
Any of a number of small holothurians resembling in form a gherkin, especially Pawsonia saxicola.

sea lilies
plural of sea lily

sea lily
Any of several stalked crinoids, which use the stalk to fix themselves in the bottom of the sea.

sea potato
The sea urchin Echinocardium cordatum

sea pudding
Any of various sea cucumbers.

sea star
A starfish (class Asteroidea).

sea stars
plural of sea star

sea urchin
Any of many marine echinoderms, of the class Echinoidea, commonly found in shallow water, having a complex chewing structure named Aristotle's lantern.

sea urchins
plural of sea urchin

seastar
Alternative spelling of sea star.

seastars
plural of seastar

serpent star
Ophiura ophiura, a brittle star in the order Ophiurida, typically found on coastal seabeds around northwestern Europe.