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词汇 mastodon
释义

Definition of mastodon in English:

mastodon

noun ˈmastədɒnˈmæstəˌdɑn
  • A large extinct elephant-like mammal of the Miocene to Pleistocene epochs, having teeth of a relatively primitive form and number.

    柱牙象,乳齿象

    Mammutidae and other families, order Proboscidea: many species

    Example sentencesExamples
    • Prehistoric elephants - not just the woolly mammoths of Siberia, but others, such as American mastodons - were a common sight across the northern half of the globe.
    • Yet a number of the large animal species found at La Brea are no longer found in North America: native horses, camels, mammoths and mastodons, longhorned bison, and sabre-toothed cats.
    • All too often books written for a popular audience include animals such as mammoths, mastodons, plesiosaurs, ichthyosaurs, and the sail-backed Dimetrodon.
    • Saber-toothed cats, mastodons, giant sloths, woolly rhinos, and many other big, shaggy mammals are widely thought to have died out around the end of the last ice age, some 10,500 years ago.
    • ‘But as scientists, paleontologists, we are all aware that a mammoth or mastodon being extinct is not the same as a living form,’ he said.
    • Mammoth and mastodon teeth have been dredged from 40 sites along the continental shelf off the eastern US in water up to 120 m deep.
    • In this scenario, humans moved rapidly through the continent, slaughtering mammoths, mastodons and other large prey as they went.
    • The fossils they found included mastodons - early relatives of the elephant - primitive horses, rhino and even early camels, as well as crocodiles, giant armadillos, turtles and ground sloths long since extinct.
    • These extinctions included animals such as mammoths and mastodons, the saber-toothed cat, ground sloths and native American horses and camels.
    • During the Pleistocene Epoch, which ended about 11,000 years ago, this scavenger dined on the carcasses of mastodons, giant sloths, primitive horses, and other megafauna of the time.
    • We learned the difference between mastodons and mammoths and admired their sturdy columnar legs, but given our languor, we resembled nothing so much as the giant sloth.
    • She says they were only made for scenery - like the rhinoceros and the mastodon.
    • In lower latitudes, mastodons and elephants, giant deer and ox, beavers, dogs and cats, and other familiar species existed in the forests and grasslands.
    • Pretty much everywhere you look, you find evidence of big critters roaming the earth - mastodons, mammoths, big camels, and my favorite, beavers the size of black bears.
    • Clues from bones tell a remarkable story of an Ice Age drought, where mastodons (relatives of the mammoths) undertook huge migrations just to survive the seasons.
    • Geologists say it probably once belonged to a woolly mammoth or a mastodon.
    • What killed the saber-toothed tiger, the mastodon and the mammoth, formidable animals that were on top of the food chain in North America 20,000 years ago?
    • The equid and mammoth remains came from the upper unit and the mastodon and edentate material came from the middle unit.
    • The trip takes an unexpected turn when the craft they are rowing begins a voyage back through time where the young heroes encounter mastodons, dinosaurs and eventually the starting point of life on earth.
    • From mammoths and mastodons the Clovis foragers would have learned much about edible wild plants.

Derivatives

  • mastodontic

  • adjective mastəˈdɒntɪk
    • Then the really terrifying thought struck me: are acts of such atrocity the only way to get rid of mastodontic eyesores like these?

Origin

Early 19th century: modern Latin, from Greek mastos 'breast' + odous, odont- 'tooth' (with reference to nipple-shaped tubercles on the crowns of its molar teeth).

Definition of mastodon in US English:

mastodon

nounˈmæstəˌdɑnˈmastəˌdän
  • A large extinct elephant-like mammal of the Miocene to Pleistocene epochs, having teeth of a relatively primitive form and number.

    柱牙象,乳齿象

    Mammutidae and other families, order Proboscidea: many species, including the American mastodon (Mammut americanum), which possibly survived to historical times in North America

    Example sentencesExamples
    • ‘But as scientists, paleontologists, we are all aware that a mammoth or mastodon being extinct is not the same as a living form,’ he said.
    • These extinctions included animals such as mammoths and mastodons, the saber-toothed cat, ground sloths and native American horses and camels.
    • The trip takes an unexpected turn when the craft they are rowing begins a voyage back through time where the young heroes encounter mastodons, dinosaurs and eventually the starting point of life on earth.
    • We learned the difference between mastodons and mammoths and admired their sturdy columnar legs, but given our languor, we resembled nothing so much as the giant sloth.
    • Pretty much everywhere you look, you find evidence of big critters roaming the earth - mastodons, mammoths, big camels, and my favorite, beavers the size of black bears.
    • Geologists say it probably once belonged to a woolly mammoth or a mastodon.
    • She says they were only made for scenery - like the rhinoceros and the mastodon.
    • Yet a number of the large animal species found at La Brea are no longer found in North America: native horses, camels, mammoths and mastodons, longhorned bison, and sabre-toothed cats.
    • Prehistoric elephants - not just the woolly mammoths of Siberia, but others, such as American mastodons - were a common sight across the northern half of the globe.
    • What killed the saber-toothed tiger, the mastodon and the mammoth, formidable animals that were on top of the food chain in North America 20,000 years ago?
    • Clues from bones tell a remarkable story of an Ice Age drought, where mastodons (relatives of the mammoths) undertook huge migrations just to survive the seasons.
    • Saber-toothed cats, mastodons, giant sloths, woolly rhinos, and many other big, shaggy mammals are widely thought to have died out around the end of the last ice age, some 10,500 years ago.
    • All too often books written for a popular audience include animals such as mammoths, mastodons, plesiosaurs, ichthyosaurs, and the sail-backed Dimetrodon.
    • In lower latitudes, mastodons and elephants, giant deer and ox, beavers, dogs and cats, and other familiar species existed in the forests and grasslands.
    • In this scenario, humans moved rapidly through the continent, slaughtering mammoths, mastodons and other large prey as they went.
    • The fossils they found included mastodons - early relatives of the elephant - primitive horses, rhino and even early camels, as well as crocodiles, giant armadillos, turtles and ground sloths long since extinct.
    • During the Pleistocene Epoch, which ended about 11,000 years ago, this scavenger dined on the carcasses of mastodons, giant sloths, primitive horses, and other megafauna of the time.
    • The equid and mammoth remains came from the upper unit and the mastodon and edentate material came from the middle unit.
    • Mammoth and mastodon teeth have been dredged from 40 sites along the continental shelf off the eastern US in water up to 120 m deep.
    • From mammoths and mastodons the Clovis foragers would have learned much about edible wild plants.

Origin

Early 19th century: modern Latin, from Greek mastos ‘breast’ + odous, odont- ‘tooth’ (with reference to nipple-shaped tubercles on the crowns of its molar teeth).

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