Definitions of placental
  1. adjective
    pertaining to or having or occurring by means of a placenta
    “all mammals except monotremes and marsupials are placental mammals”
    occurring through or by way of the placenta
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    having no placenta
  2. noun
    mammals having a placenta; all mammals except monotremes and marsupials
    synonyms: eutherian, eutherian mammal, placental mammal
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    farm animal, livestock, stock
    any animals kept for use or profit
    mature male of various mammals of which the female is called `cow'; e.g. whales or elephants or especially cattle
    mature female of mammals of which the male is called `bull'
    an animal in its second year
    mature male of various mammals (especially deer or antelope)
    mature female of mammals of which the male is called 'buck'
    small insect-eating mainly nocturnal terrestrial or fossorial mammals
    aquatic mammal
    whales and dolphins; manatees and dugongs; walruses; seals
    a terrestrial or aquatic flesh-eating mammal
    in some classifications considered a suborder of Carnivora
    Orycteropus afer, aardvark, ant bear, anteater
    nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata
    bat, chiropteran
    nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate
    gnawing mammal, lagomorph
    relative large gnawing animals; distinguished from rodents by having two pairs of upper incisors specialized for gnawing
    gnawer, rodent
    relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing
    in former classifications a major division of Mammalia comprising all hoofed mammals; now divided into the orders Perissodactyla (odd-toed ungulates) and Artiodactyla (even-toed ungulates)
    hoofed mammal, ungulate
    any of a number of mammals with hooves that are superficially similar but not necessarily closely related taxonomically
    in former classifications a major division of Mammalia comprising mammals with nails or claws; distinguished from hoofed mammals and cetaceans
    unguiculate, unguiculate mammal
    a mammal having nails or claws
    coney, cony, das, dassie, hyrax
    any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes
    any of various nonruminant hoofed mammals having very thick skin: elephant; rhinoceros; hippopotamus
    primitive terrestrial mammal with few if any teeth; of tropical Central America and South America
    anteater, pangolin, scaly anteater
    toothless mammal of southern Africa and Asia having a body covered with horny scales and a long snout for feeding on ants and termites
    any placental mammal of the order Primates; has good eyesight and flexible hands and feet
    tree shrew
    insectivorous arboreal mammal of southeast Asia that resembles a squirrel with large eyes and long sharp snout
    colugo, flying cat, flying lemur
    arboreal nocturnal mammal of southeast Asia and the Philippines resembling a lemur and having a fold of skin on each side from neck to tail that is used for long gliding leaps
    proboscidean, proboscidian
    massive herbivorous mammals having tusks and a long trunk
    plantigrade, plantigrade mammal
    an animal that walks with the entire sole of the foot touching the ground as e.g. bears and human beings
    digitigrade, digitigrade mammal
    an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses
    small velvety-furred burrowing mammal having small eyes and fossorial forefeet
    shrew, shrewmouse
    small mouselike mammal with a long snout; related to moles
    Erinaceus europaeus, Erinaceus europeaeus, hedgehog
    small nocturnal Old World mammal covered with both hair and protective spines
    tendrac, tenrec
    small often spiny insectivorous mammal of Madagascar; resembles a hedgehog
    Potamogale velox, otter shrew, potamogale
    amphibious African insectivorous mammal that resembles an otter
    blower, cetacean, cetacean mammal
    large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals
    sea cow, sirenian, sirenian mammal
    any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs
    pinnatiped, pinniped, pinniped mammal
    aquatic carnivorous mammal having a streamlined body specialized for swimming with limbs modified as flippers
    fissiped, fissiped mammal
    terrestrial carnivores; having toes separated to the base: dogs; cats; bears; badgers; raccoons
    canid, canine
    any of various fissiped mammals with nonretractile claws and typically long muzzles
    felid, feline
    any of various lithe-bodied roundheaded fissiped mammals, many with retractile claws
    a massive carnivorous or omnivorous mammal with a long shaggy coat and strong claws
    viverrine, viverrine mammal
    small cat-like predatory mammals of warmer parts of the Old World
    fruit bat, megabat
    large Old World bat of warm and tropical regions that feeds on fruit
    carnivorous bat, microbat
    typically having large ears and feeding primarily on insects; worldwide in distribution
    in former classifications considered a suborder of Rodentia coextensive with the order Lagomorpha: gnawing animals
    leporid, leporid mammal
    rabbits and hares
    coney, cony, mouse hare, pika, rock rabbit
    small short-eared burrowing mammal of rocky uplands of Asia and western North America
    any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails
    any of various long-tailed rodents similar to but larger than a mouse
    a rodent that is a member of the family Muridae
    water rat
    any of various amphibious rats
    New World mouse
    a variety of rodent
    Ondatra zibethica, muskrat, musquash
    beaver-like aquatic rodent of North America with dark glossy brown fur
    Florida water rat, Neofiber alleni, round-tailed muskrat
    of Florida wetlands
    Sigmodon hispidus, cotton rat
    destructive long-haired burrowing rat of southern North America and Central America
    wood rat, wood-rat
    any of various small short-tailed rodents of the northern hemisphere having soft fur grey above and white below with furred tails and large ears; some are hosts for Ixodes pacificus and Ixodes scapularis (Lyme disease ticks)
    short-tailed Old World burrowing rodent with large cheek pouches
    gerbil, gerbille
    small Old World burrowing desert rodent with long soft pale fur and hind legs adapted for leaping
    any of various short-tailed furry-footed rodents of circumpolar distribution
    hedgehog, porcupine
    relatively large rodents with sharp erectile bristles mingled with the fur
    jumping mouse
    any of several primitive mouselike rodents with long hind legs and no cheek pouches; of woodlands of Eurasia and North America
    mouselike jumping rodent
    small furry-tailed squirrel-like Old World rodent that becomes torpid in cold weather
    a kind of arboreal rodent having a long bushy tail
    prairie dog, prairie marmot
    any of several rodents of North American prairies living in large complex burrows having a barking cry
    stocky coarse-furred burrowing rodent with a short bushy tail found throughout the northern hemisphere; hibernates in winter
    large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges
    Aplodontia rufa, mountain beaver, sewellel
    bulky nocturnal burrowing rodent of uplands of the Pacific coast of North America; the most primitive living rodent
    short-tailed rough-haired South American rodent
    Dolichotis patagonum, mara
    hare-like rodent of the pampas of Argentina
    Hydrochoerus hydrochaeris, capibara, capybara
    pig-sized tailless South American amphibious rodent with partly webbed feet; largest living rodent
    Dasyprocta aguti, agouti
    agile long-legged rabbit-sized rodent of Central America and South America and the West Indies; valued as food
    Cuniculus paca, paca
    large burrowing rodent of South America and Central America; highly esteemed as food
    mountain paca
    rodent of mountains of western South America
    Myocastor coypus, coypu, nutria
    aquatic South American rodent resembling a small beaver; bred for its fur
    Chinchilla laniger, chinchilla
    small rodent with soft pearly grey fur; native to the Andes but bred in captivity for fur
    mountain chinchilla, mountain viscacha
    a rodent native to the mountains of Chile and Peru and now bred in captivity
    Lagostomus maximus, chinchillon, viscacha
    gregarious burrowing rodent larger than the chinchillas
    abrocome, chinchilla rat, rat chinchilla
    ratlike rodent with soft fur and large ears of the Andes
    mole rat
    furry short-limbed tailless rodent resembling a true mole in habits and appearance; of eastern Europe and Middle East
    mole rat
    African rodent resembling a mole in habits and appearance
    sand rat
    small nearly naked African mole rat of desert areas
    an extinct ungulate
    Procavia capensis, rock hyrax, rock rabbit
    hyrax that lives in rocky areas
    odd-toed ungulate, perissodactyl, perissodactyl mammal
    placental mammals having hooves with an odd number of toes on each foot
    artiodactyl, artiodactyl mammal, even-toed ungulate
    placental mammal having hooves with an even number of functional toes on each foot
    adult male deer
    mustelid, musteline, musteline mammal
    fissiped fur-bearing carnivorous mammals
    burrowing chiefly nocturnal mammal with body covered with strong horny plates
    sloth, tree sloth
    any of several slow-moving arboreal mammals of South America and Central America; they hang from branches back downward and feed on leaves and fruits
    megatherian, megatherian mammal, megatheriid
    a large extinct ground sloth
    a variety of extinct edentate
    large (bear-sized) extinct edentate mammal of the Pleistocene in South America
    New World anteater, anteater
    any of several tropical American mammals of the family Myrmecophagidae which lack teeth and feed on ants and termites
    an ape or monkey
    any of various primates with short tails or no tail at all
    any member of the suborder Anthropoidea including monkeys and apes and hominids
    a primate of the superfamily Hominoidea
    a primate of the family Hominidae
    any of various long-tailed primates (excluding the prosimians)
    pen-tail, pen-tailed tree shrew, pentail
    brown tree shrew having a naked tail bilaterally fringed with long stiff hairs on the distal third; of Malaysia
    primitive primates having large ears and eyes and characterized by nocturnal habits
    large-eyed arboreal prosimian having foxy faces and long furry tails
    nocturnal arboreal primate of Indonesia and the Philippines having huge eyes and digits ending in pads to facilitate climbing; the only primate that spurns all plant material as food living entirely on insects and small vertebrates
    Cynocephalus variegatus
    a variety of flying lemur
    five-toed pachyderm
    mastodon, mastodont
    extinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene times; differ from mammoths in the form of the molar teeth
    plantigrade carnivorous mammals
    type of:
    mammal, mammalian
    any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
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