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dolphin

UK/ˈdɒlf.ɪn/US/ˈdɑlf.ɪn/
nounB1Common in everyday speech and writing · #5,010 of 15,258neutral

Other forms: dolphins

A dolphin is a very clever, friendly sea animal that jumps out of the water. A pod of dolphins, dolphins following the boat, swim with dolphins.

It is a mammal, breathing air and feeding its young on milk, and it sleeps with half its brain at a time so it can keep surfacing. It hunts by echolocation. The Greek name comes from a word for the womb, marking it as a mammal even then.

NASA · Public domain

Definitions of dolphin

  1. 1noundolphinA clever sea mammal that leaps from the water.B1

    “A dolphin swam alongside our boat, leaping out of the waves.”

dolphin is a sea mammal.

Where it comes from

Greek delphis comes from delphys, the womb — naming the animal as one that bears live young.

  1. Ancient Greek

    δελφίς

  2. Latin

    delphīnus

  3. Middle English

    delphyn

  4. English, today

    dolphin

Built from

  • δελφύς · Ancient Greek — womb

From Middle English delphyn, from Latin delphīnus, from Ancient Greek δελφίς, from δελφύς (“womb”); the modern form in -ol- is probably influenced by the pronunciation of Middle French dauphin. Compare Swedish delfin. a doublet of dauphin. Displaced native mereswīn, whence English mereswine.

Etymology from Wiktionary, CC BY-SA

Practised in Animals

Practise this word

dolphin in the wild

  • Most species prefer the warm waters of the tropic zones, but some, such as the right whale dolphin, prefer colder climates.

    Dolphin

  • Male dolphins typically mate with multiple females every year, but females only mate every two to three years.

    Dolphin

  • Porpoises () are small dolphin-like cetaceans classified under the family Phocoenidae.

    Porpoise

  • Although similar in appearance to dolphins, they are more closely related to narwhals and belugas.

    Porpoise

  • Adults acquire a pink color, more prominent in males, giving it its nickname "pink river dolphin".

    Amazon river dolphin

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From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.