Other forms: dolphins

Dolphins are smart, sociable aquatic mammals that live in every ocean on the planet. Scientists aren't sure why they do it, but dolphins are known for leaping above the surface of the water as they swim.

Dolphins are one of the most commonly recognized and beloved sea creatures, in part because they are gregarious and friendly. Their playful nature and intelligence have brought dolphins into close contact with humans, not always to their benefit. Scientists have learned that dolphins live longer, happier lives when they're not in captivity, so you're less likely to see dolphins at an aquarium than in the past. Dolphins are mammals, giving birth to live babies, which may explain the Greek root of dolphin, delphys, meaning "womb."

Definitions of dolphin
  1. noun
    any of various small toothed whales with a beaklike snout; larger than porpoises
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    Delphinus delphis, common dolphin
    black-and-white dolphin that leaps high out of the water;
    bottle-nosed dolphin, bottlenose, bottlenose dolphin
    any of several dolphins with rounded forehead and well-developed beak; chiefly of northern Atlantic and Mediterranean
    any of several small gregarious cetacean mammals having a blunt snout and many teeth
    Grampus griseus, grampus
    slaty-grey blunt-nosed dolphin common in northern seas
    Orcinus orca, grampus, killer, killer whale, orca, sea wolf
    predatory black-and-white toothed whale with large dorsal fin; common in cold seas
    Globicephala melaena, black whale, blackfish, common blackfish, pilot whale
    small dark-colored whale of the Atlantic coast of the United States; the largest male acts as pilot or leader for the school
    river dolphin
    any of several long-snouted usually freshwater dolphins of South America and southern Asia
    Delphinapterus leucas, beluga, white whale
    small northern whale that is white when adult
    Atlantic bottlenose dolphin, Tursiops truncatus
    the most common dolphin of northern Atlantic and Mediterranean; often kept captive and trained to perform
    Pacific bottlenose dolphin, Tursiops gilli
    a bottlenose dolphin found in the Pacific Ocean
    Phocoena phocoena, harbor porpoise, herring hog
    the common porpoise of the northern Atlantic and Pacific
    Phocoena sinus, vaquita
    a short porpoise that lives in the Gulf of California; an endangered species
    type of:
    toothed whale
    any of several whales having simple conical teeth and feeding on fish etc.
  2. noun
    large slender food and game fish widely distributed in warm seas (especially around Hawaii)
    synonyms: dolphinfish, mahimahi
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    Coryphaena hippurus
    the more common dolphinfish valued as food; about six feet long
    Coryphaena equisetis
    a kind of dolphinfish
    type of:
    percoid, percoid fish, percoidean
    any of numerous spiny-finned fishes of the order Perciformes




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