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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

chordate go
any animal of the phylum Chordata having a notochord or spinal column

vertebrate, craniate go
animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

mammal, mammalian go
any warm-blooded vertebrate having the skin more or less covered with hair

placental, placental mammal, eutherian, eutherian mammal go
mammals having a placenta

aquatic mammal go
whales and dolphins

cetacean, cetacean mammal, blower go
large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales

whale go
any of the larger cetacean mammals having a streamlined body and breathing through a blowhole on the head

toothed whale go
any of several whales having simple conical teeth and feeding on fish etc.

dolphin
any of various small toothed whales with a beaklike snout

noun.animal

8 Subcategories

common dolphin, Delphinus delphis go
black-and-white dolphin that leaps high out of the water
bottlenose, bottlenose dolphin, bottle-nosed dolphin go
any of several dolphins with rounded forehead and well-developed beak
porpoise go
any of several small gregarious cetacean mammals having a blunt snout and many teeth
grampus, Grampus griseus go
slaty-grey blunt-nosed dolphin common in northern seas
grampus, killer whale, killer, orca, sea wolf, Orcinus orca go
predatory black-and-white toothed whale with large dorsal fin
black whale, pilot whale, common blackfish, blackfish, Globicephala melaena go
small dark-colored whale of the Atlantic coast of the United States
river dolphin go
any of several long-snouted usually freshwater dolphins of South America and southern Asia
white whale, beluga, Delphinapterus leucas go
small northern whale that is white when adult