dolphin

American  

[dawl-fin, dol-] / ˈdɔl fɪn, ˈdɒl- /

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.

2. Also called dolphinfish, mahimahi.  Also called pompano dolphin.  either of two large, slender fishes, Coryphaena hippurus or C. equisetis, of warm and temperate seas.

3. Nautical.

   1. a pile, cluster of piles, or buoy to which a vessel may be moored in open water.

   2. a cluster of piles used as a fender, as at the entrance to a dock.

   3. a pudding fender at the nose of a tugboat or on the side of a vessel.

4. Astronomy. Dolphin, the constellation Delphinus.

---

dolphin British  

/ ˈdɒlfɪn /

noun

1. any of various marine cetacean mammals of the family Delphinidae , esp Delphinus delphis, that are typically smaller than whales and larger than porpoises and have a beaklike snout

2. any freshwater cetacean of the family Platanistidae, inhabiting rivers of North and South America and S Asia. They are smaller than marine dolphins and have a longer narrower snout

3. Also called: dorado.  either of two large marine percoid fishes, Coryphaena hippurus or C. equisetis, that resemble the cetacean dolphins and have an iridescent coloration

4. nautical a post or buoy for mooring a vessel

---

Etymology

Origin of dolphin

First recorded in 1300–50; Middle English dolphyn, from Old French daulphin, from Old Provençal dalfin, from unattested Vulgar Latin dalfīnus, Latin delphīnus, from Greek delphī́n

Example Sentences

Common dolphins and harbour porpoises are among the species most frequently affected by stranding, largely because they are more abundant in coastal waters, according to the BDMLR.

From BBC

Long-finned pilot whales are large dolphins and described by Whale and Dolphin Conservation as having "incredibly strong bonds".

From BBC

The first suspected case of a grey seal killing a common dolphin has been recorded in Wales.

From BBC

The findings suggest these highly social fish are capable of a sophisticated cognitive process known as 'contingency testing,' a level of intelligence more commonly associated with marine mammals such as dolphins.

From Science Daily

One of them leapt off, like he’d seen whales and dolphins do on the Discovery Channel.

From Literature