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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

living thing, animate thing go
a living (or once living) entity

organism, being go
a living thing that has (or can develop) the ability to act or function independently

animal, animate being, beast, brute, creature, fauna go
a living organism characterized by voluntary movement

invertebrate
any animal lacking a backbone or notochord

noun.animal

17 Subcategories

arthropod go
invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
zoophyte go
any of various invertebrate animals resembling a plant such as a sea anemone or coral or sponge
sponge, poriferan, parazoan go
primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework
coelenterate, cnidarian go
radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures
ctenophore, comb jelly go
biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb
worm go
any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes
woodborer, borer go
any of various insects or larvae or mollusks that bore into wood
rotifer go
minute aquatic multicellular organisms having a ciliated wheel-like organ for feeding and locomotion
mollusk, mollusc, shellfish go
invertebrate having a soft unsegmented body usually enclosed in a shell
phoronid go
hermaphrodite wormlike animal living in mud of the sea bottom
sea moss, bryozoan, polyzoan, sea mat, moss animal go
sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles
ectoproct go
sessile mossy aquatic animal having the anus of the polyp outside the crown of tentacles
entoproct go
any of various moss-like aquatic animals usually forming branching colonies
Symbion pandora go
only known species of Cycliophora
brachiopod, lamp shell, lampshell go
marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food
peanut worm, sipunculid go
small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut
echinoderm go
marine invertebrates with tube feet and five-part radially symmetrical bodies