| adventurousness | (noun) the trait of being adventurous | Synonyms: venturesomeness |
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| ailurophobia | (noun) a morbid fear of cats | - |
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| aleurone | (noun) granular protein in outermost layer of endosperm of many seeds or cereal grains | - |
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| amaurosis | (noun) partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain | - |
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| aponeurosis | (noun) any of the deeper and thicker fascia that attach muscles to bones; resemble flattened tendons | - |
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| aurochs | (noun) large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle | Synonyms: Bos primigenius, urus |
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| (noun) European bison having a smaller and higher head than the North American bison | Synonyms: Bison bonasus, wisent |
| aurora | (noun) an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force | - |
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| (noun) the first light of day | Synonyms: break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, first light, morning, sunrise, sunup |
| auroscope | (noun) medical instrument consisting of a magnifying lens and light; used for examining the external ear (the auditory meatus and especially the tympanic membrane) | Synonyms: auriscope, otoscope |
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| binturong | (noun) arboreal civet of Asia having a long prehensile tail and shaggy black hair | Synonyms: Arctictis bintourong, bearcat |
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| cefuroxime | (noun) a cephalosporin that can be given parenterally (trade name Zinacef) or orally by tablets (trade name Ceftin); indicated for infections of the lungs or throat or ears or urinary tract or meninges | Synonyms: Ceftin, Zinacef |
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| chiaroscuro | (noun) a monochrome picture made by using several different shades of the same color | - |
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| conjuror | (noun) a witch doctor who practices conjury | Synonyms: conjure man, conjurer |
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| (noun) someone who performs magic tricks to amuse an audience | Synonyms: conjurer, illusionist, magician, prestidigitator |
| corduroy | (noun) a cut pile fabric with vertical ribs; usually made of cotton | Synonyms: cord |
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| (noun) a road made of logs laid crosswise | - |
| corduroys | (noun) cotton trousers made of corduroy cloth | Synonyms: cords |
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| douroucouli | (noun) nocturnal monkey of Central America and South America with large eyes and thick fur | Synonyms: Aotus trivirgatus |
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| durometer | (noun) An instrument for measuring the degree of hardness; especially, an instrument for testing the relative hardness of steel rails and the like. | - |
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| euro | (noun) the basic monetary unit of most members of the European Union (introduced in 1999); in 2002 twelve European nations (Germany, France, Belgium, Luxembourg, the Netherlands, Italy, Spain, Portugal, Ireland, Greece, Austria, Finland) adopted the euro as their basic unit of money and abandoned their traditional currencies | - |
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| euronithopod | (noun) widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs, trachodon and iguanodon) | Synonyms: Euronithopoda, Ornithopoda, suborder Euronithopoda, suborder Ornithopoda |
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| europhilia | (noun) admiration for Europe, Europeans, or the European Union. | - |
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| europium | (noun) a bivalent and trivalent metallic element of the rare earth group | Synonyms: atomic number 63, Eu |
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| furor | (noun) a sudden outburst (as of protest) | Synonyms: furore |
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| (noun) an interest followed with exaggerated zeal | Synonyms: craze, cult, fad, furore, rage |
| furore | (noun) a sudden outburst (as of protest) | Synonyms: furor |
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| (noun) an interest followed with exaggerated zeal | Synonyms: craze, cult, fad, furor, rage |
| furosemide | (noun) commonly used diuretic (trade name Lasix) used to treat hypertension and edema | Synonyms: Lasix |
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| futurology | (noun) the study or prediction of future developments on the basis of existing conditions | Synonyms: futuristics |
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| hyaluronidase | (noun) an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids | Synonyms: Hyazyme, spreading factor |
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| juror | (noun) someone who serves (or waits to be called to serve) on a jury | - |
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| kraurosis | (noun) atrophy and shriveling of the skin or mucous membrane | - |
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| linuron | (noun) a herbicide that kills weeds without harming vegetables | - |
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| mononeuropathy | (noun) any neuropathy of a single nerve trunk | - |
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| motoneuron | (noun) a neuron conducting impulses outwards from the brain or spinal cord | Synonyms: efferent neuron, motor nerve fiber, motor neuron |
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| naturopath | (noun) a therapist who practices naturopathy | - |
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| naturopathy | (noun) a method of treating disease using food and exercise and heat to assist the natural healing process | - |
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| neuroanatomy | (noun) the anatomy of the nervous system | - |
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| neurobiologist | (noun) a specialist in neurobiology | - |
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| neurobiology | (noun) the branch of biology that deals with the anatomy and physiology and pathology of the nervous system | - |
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| neuroblast | (noun) a cell from which a nerve cell develops | - |
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| neuroblastoma | (noun) malignant tumor containing embryonic nerve cells; usually metastasizes quickly | - |
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| neurochemical | (noun) any organic substance that occurs in neural activity | - |
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| neurodermatitis | (noun) dermatitis in which localized areas (especially the forearms or back of the neck or outer part of the ankle) itch persistently; cause is unknown | - |
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| neuroepithelioma | (noun) malignant tumor of the neuroepithelium | - |
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| neuroepithelium | (noun) epithelium associated with special sense organs and containing sensory nerve endings | - |
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| neuroethics | (noun) the study of ethical implications of treatments for neurological diseases | - |
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| neurofibril | (noun) Any of the long, thin, microscopic fibrils that run through the body of a neuron and extend into the axon and dendrites, giving the neuron support and shape. | - |
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| neurofibroma | (noun) tumor of the fibrous covering of a peripheral nerve | Synonyms: neurilemoma |
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| neurofibromatosis | (noun) autosomal dominant disease characterized by numerous neurofibromas and by spots on the skin and often by developmental abnormalities | Synonyms: von Recklinghausen's disease |
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| neurogenesis | (noun) the development of nerve tissues | - |
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| neuroglia | (noun) sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system | Synonyms: glia |
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| neurogliacyte | (noun) a cell of the neuroglia | Synonyms: glial cell, neuroglial cell |
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| neurohormone | (noun) a hormone that is released by nerve impulses (e.g., norepinephrine or vasopressin) | - |
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| neurohypophysis | (noun) the posterior lobe of the pituitary body; primarily glandular in nature | Synonyms: pars nervosa, posterior pituitary, posterior pituitary gland |
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| neurolemma | (noun) thin membranous sheath around a nerve fiber | Synonyms: neurilemma |
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| neuroleptic | (noun) tranquilizer used to treat psychotic conditions when a calming effect is desired | Synonyms: antipsychotic, antipsychotic agent, antipsychotic drug, major tranquilizer, major tranquilliser, major tranquillizer, neuroleptic agent, neuroleptic drug |
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| neurolinguist | (noun) someone trained in neuroscience and linguistics who studies brain processes during language production and reception | - |
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| neurolinguistics | (noun) the branch of linguistics that studies the relation between language and the structure and function of the nervous system | - |
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| neurologist | (noun) a medical specialist in the nervous system and the disorders affecting it | Synonyms: brain doctor |
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| neurology | (noun) the branch of medical science that deals with the nervous system | - |
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| (noun) (neurology) the branch of medicine that deals with the nervous system and its disorders | Synonyms: clinical neurology |
| neurolysin | (noun) any toxin that affects neural tissues | Synonyms: neurotoxin |
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| neuroma | (noun) any tumor derived from cells of the nervous system | - |
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| neuromarketing | (noun) marketing based on studies of consumers' sensorimotor, cognitive, and affective responses | Synonyms: neuro-marketing |
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| neuron | (noun) a cell that is specialized to conduct nerve impulses | Synonyms: nerve cell |
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| neuropathy | (noun) any pathology of the peripheral nerves | - |
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| neurophysiology | (noun) the branch of neuroscience that studies the physiology of the nervous system | - |
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| neuropil | (noun) the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded | Synonyms: neuropile |
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| neuropile | (noun) the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded | Synonyms: neuropil |
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| neuroplasty | (noun) plastic surgery of the nerves | - |
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| neuropsychiatry | (noun) the branch of medicine dealing with mental disorders attributable to diseases of the nervous system | - |
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| neuropsychology | (noun) the branch of psychology that is concerned with the physiological bases of psychological processes | Synonyms: physiological psychology, psychophysiology |
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| neuropteran | (noun) insect having biting mouthparts and four large membranous wings with netlike veins | Synonyms: neuropteron, neuropterous insect |
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| neuropteron | (noun) insect having biting mouthparts and four large membranous wings with netlike veins | Synonyms: neuropteran, neuropterous insect |
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| neurosarcoma | (noun) a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue | Synonyms: malignant neuroma |
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| neuroscience | (noun) the scientific study of the nervous system | - |
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| neuroscientist | (noun) a neurobiologist who specializes in the study of the brain | - |
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| neurosis | (noun) a mental or personality disturbance not attributable to any known neurological or organic dysfunction | Synonyms: neuroticism, psychoneurosis |
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| neurosurgeon | (noun) someone who does surgery on the nervous system (especially the brain) | Synonyms: brain surgeon |
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| neurosurgery | (noun) any surgery that involves the nervous system (brain or spinal cord or peripheral nerves) | - |
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| neurosyphilis | (noun) syphilis of the central nervous system | - |
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| neurotic | (noun) a person suffering from neurosis | Synonyms: mental case, psychoneurotic |
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| neuroticism | (noun) a mental or personality disturbance not attributable to any known neurological or organic dysfunction | Synonyms: neurosis, psychoneurosis |
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| neurotoxin | (noun) any toxin that affects neural tissues | Synonyms: neurolysin |
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| neurotransmitter | (noun) a neurochemical that transmits nerve impulses across a synapse | - |
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| neurotropism | (noun) an affinity for neural tissues | - |
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| pleurocarp | (noun) a moss having the archegonium or antheridium on a short side branch rather than the main stalk | Synonyms: pleurocarpous moss |
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| pleurodont | (noun) an animal having teeth fused with the inner surface of the alveolar ridge without sockets | - |
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| pleurodynia | (noun) pain in the chest caused by inflammation of the muscles between the ribs | Synonyms: costalgia, pleuralgia |
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| pleuropneumonia | (noun) pleurisy and pneumonia | - |
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| pleurothallis | (noun) any of numerous small tufted orchids of the genus Pleurothallis having leathery to fleshy leaves and racemes of 1 to many small flowers | - |
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| politburo | (noun) the chief executive and political committee of the Communist Party | - |
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| psychoneurosis | (noun) a mental or personality disturbance not attributable to any known neurological or organic dysfunction | Synonyms: neurosis, neuroticism |
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| psychoneurotic | (noun) a person suffering from neurosis | Synonyms: mental case, neurotic |
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| rigourousness | (noun) something hard to endure | Synonyms: asperity, grimness, hardship, rigor, rigorousness, rigour, severeness, severity |
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| (noun) excessive sternness | Synonyms: hardness, harshness, inclemency, rigor, rigorousness, rigour, severeness, severity, stiffness |
| sauropod | (noun) very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head on a long neck and tail and five-toed limbs; largest known land animal | Synonyms: sauropod dinosaur |
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| tauromachy | (noun) the activity at a bullfight | Synonyms: bullfighting |
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| thysanuron | (noun) primitive wingless insects: bristletail | Synonyms: thysanuran insect |
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| urobilin | (noun) brown bile pigment formed from urobilinogens and found in feces and in small amounts in urine | - |
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| urobilinogen | (noun) a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine | Synonyms: stercobilinogen |
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| urocele | (noun) extravasation of urine into the scrotal sac | - |
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| urochesia | (noun) passage of urine from the anus | Synonyms: urochezia |
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| urochezia | (noun) passage of urine from the anus | Synonyms: urochesia |
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| urochord | (noun) a notochord of a larval tunicate typically confined to the caudal region | - |
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| (noun) primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva | Synonyms: tunicate, urochordate |
| urochordate | (noun) primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva | Synonyms: tunicate, urochord |
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