Dolphin Definition–noun | 1. | any of several chiefly marine, cetacean mammals of the family Delphinidae, having a fishlike body, numerous teeth, and the front of the head elongated into a beaklike projection. |
| 3. | Nautical. | a. | a pile, cluster of piles, or buoy to which a vessel may be moored in open water. |
| b. | a cluster of piles used as a fender, as at the entrance to a dock. |
| c. | a pudding fender at the nose of a tugboat or on the side of a vessel. |
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| 4. | (initial capital letter ) Astronomy. the constellation Delphinus. |
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From Dictionary
Related topics from Britannicadolphin
any of the toothed whales belonging to the families Delphinidae (oceanic dolphins) or Platanistidae (river dolphins). Of the 32 species of dolphins in the Delphinidae, 6 are commonly called whales, ...
dolphin
either species of fish belonging to the genus Coryphaena. The food and game fish called the common dolphin (C. hippuras) is known in Hawaiian as mahimahi and sometimes in Spanish as the dorado. ...
river dolphin
any of four or five species of small, usually freshwater aquatic mammals that are related to whales (order Cetacea). These dolphins are found in rivers of south-central Asia, China, and South America ...
grampus
a common offshore inhabitant of tropical and temperate ocean waters, a member of the dolphin family (Delphinidae). The grampus measures about 4 metres (approximately 13 feet) in length and has a ...
cetacean
Captive dolphins (family Delphinidae) commonly exercise food taste discrimination that is comparable to the human ability, in spite of the fact that the presence of taste buds in cetaceans has not ...
dolphin
Dolphins first appear as fossils from the Early Miocene Epoch (23.8 million to 16.4 million years ago)-a time when the cetacean fauna was more diverse. All of today's dolphin groups were present in ...
Norris, Kenneth Stafford
American marine naturalist and educator whose pioneering work with marine mammals, particularly dolphins, transformed their study into a modern science and led to the verification of echolocation, a ...
dolphin
Dolphins are capable of living in either fresh or salt water. Distributed worldwide in all oceans and seas except the Caspian and Aral seas, they range from equatorial to subpolar waters and also can ...
commercial fishing
Ocean mammals include such cetaceans as whales, porpoises, and dolphins, as well as seals and walruses. Whales are a source of meat, fats, and oils, hormones such as insulin, and chemicals. They ...
stearyl alcohol
waxy solid alcohol formerly obtained from whale or dolphin oil and used as a lubricant and antifoam agent and to retard evaporation of water from reservoirs. It is now manufactured by chemical ...
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