| immunosuppressant | (noun) a drug that lowers the body's normal immune response | Synonyms: immune suppressant drug, immunosuppressive, immunosuppressive drug, immunosuppressor |
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| immunosuppression | (noun) lowering the body's normal immune response to invasion by foreign substances; can be deliberate (as in lowering the immune response to prevent rejection of a transplanted organ) or incidental (as a side effect of radiotherapy or chemotherapy for cancer) | - |
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| immunosuppressive | (noun) a drug that lowers the body's normal immune response | Synonyms: immune suppressant drug, immunosuppressant, immunosuppressive drug, immunosuppressor |
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| immunosuppressor | (noun) a drug that lowers the body's normal immune response | Synonyms: immune suppressant drug, immunosuppressant, immunosuppressive, immunosuppressive drug |
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| immunotherapy | (noun) therapy designed to produce immunity to a disease or to enhance resistance by the immune system | - |
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| immurement | (noun) the state of being imprisoned | Synonyms: captivity, imprisonment, incarceration |
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| immutability | (noun) the quality of being incapable of mutation | Synonyms: fixity, immutableness |
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| immutableness | (noun) the quality of being incapable of mutation | Synonyms: fixity, immutability |
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| incommutability | (noun) the quality of being not interchangeable | - |
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| intercommunication | (noun) mutual communication; communication with each other | - |
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| intercommunion | (noun) participation in Holy Communion by members of more than one church (eg Catholic and Orthodox) | - |
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| isthmus | (noun) a cord-like tissue connecting two larger parts of an anatomical structure | Synonyms: band |
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| (noun) a relatively narrow strip of land (with water on both sides) connecting two larger land areas | - |
| laryngismus | (noun) laryngeal spasm caused by the sudden contraction of laryngeal muscles | - |
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| lemur | (noun) large-eyed arboreal prosimian having foxy faces and long furry tails | - |
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| litmus | (noun) a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator | Synonyms: litmus test |
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| lomustine | (noun) an antineoplastic drug often used to treat brain tumors or Hodgkin's disease | - |
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| malamute | (noun) breed of sled dog developed in Alaska | Synonyms: Alaskan malamute, malemute |
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| malemute | (noun) breed of sled dog developed in Alaska | Synonyms: Alaskan malamute, malamute |
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| mandamus | (noun) an extraordinary writ commanding an official to perform a ministerial act that the law recognizes as an absolute duty and not a matter for the official's discretion; used only when all other judicial remedies fail | Synonyms: writ of mandamus |
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| marasmus | (noun) extreme malnutrition and emaciation (especially in children); can result from inadequate intake of food or from malabsorption or metabolic disorders | - |
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| maximum | (noun) the greatest possible degree | Synonyms: level best, utmost, uttermost |
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| (noun) the point on a curve where the tangent changes from positive on the left to negative on the right | - |
| (noun) the largest possible quantity | Synonyms: upper limit |
| minimum | (noun) the point on a curve where the tangent changes from negative on the left to positive on the right | - |
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| (noun) the smallest possible quantity | Synonyms: lower limit |
| minimus | (noun) the fifth digit; the little finger or little toe | - |
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| mu | (noun) the 12th letter of the Greek alphabet | - |
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| muadhdhin | (noun) the Muslim official of a mosque who summons the faithful to prayer from a minaret five times a day | Synonyms: muazzin, muezzin |
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| muazzin | (noun) the Muslim official of a mosque who summons the faithful to prayer from a minaret five times a day | Synonyms: muadhdhin, muezzin |
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| much | (noun) a great amount or extent | - |
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| muchness | (noun) greatness of quantity or measure or extent | - |
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| mucilage | (noun) a gelatinous substance secreted by plants | - |
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| (noun) cement consisting of a sticky substance that is used as an adhesive | Synonyms: glue, gum |
| mucin | (noun) a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces | - |
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| muck | (noun) any thick, viscous matter | Synonyms: goo, gook, goop, guck, gunk, ooze, slime, sludge |
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| (noun) fecal matter of animals | Synonyms: droppings, dung |
| muckheap | (noun) a heap of dung or refuse | Synonyms: dunghill, midden, muckhill |
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| muckhill | (noun) a heap of dung or refuse | Synonyms: dunghill, midden, muckheap |
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| muckle | (noun) (often followed by `of') a large number or amount or extent | Synonyms: batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad |
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| muckraker | (noun) one who spreads real or alleged scandal about another (usually for political advantage) | Synonyms: mudslinger |
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| muckraking | (noun) the exposure of scandal (especially about public figures) | - |
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| mucoid | (noun) any of several glycoproteins similar to mucin | - |
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| mucopolysaccharide | (noun) complex polysaccharides containing an amino group; occur chiefly as components of connective tissue | - |
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| mucopolysaccharidosis | (noun) any of a group of genetic disorders involving a defect in the metabolism of mucopolysaccharides resulting in greater than normal levels of mucopolysaccharides in tissues | - |
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| mucor | (noun) any mold of the genus Mucor | - |
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| mucosa | (noun) mucus-secreting membrane lining all body cavities or passages that communicate with the exterior | Synonyms: mucous membrane |
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| mucoviscidosis | (noun) the most common hereditary disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known | Synonyms: CF, cystic fibrosis, fibrocystic disease of the pancreas, pancreatic fibrosis |
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| mucuna | (noun) any of several erect or climbing woody plants of the genus Mucuna; widespread in tropics of both hemispheres | - |
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| mucus | (noun) protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium | Synonyms: mucous secretion |
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| mud | (noun) slanderous remarks or charges | - |
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| (noun) water soaked soil; soft wet earth | Synonyms: clay |
| mudcat | (noun) large catfish of central United States having a flattened head and projecting jaw | Synonyms: flathead catfish, goujon, Pylodictus olivaris, shovelnose catfish, spoonbill catfish |
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| (noun) flesh of scaleless food fish of the southern United States; often farmed | Synonyms: catfish |
| mudder | (noun) a racehorse that runs well on a muddy racetrack | - |
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| muddiness | (noun) the quality of being cloudy | Synonyms: cloudiness, murkiness |
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| (noun) a mental state characterized by a lack of clear and orderly thought and behavior | Synonyms: confusedness, confusion, disarray, mental confusion |
| (noun) the wetness of ground that is covered or soaked with water | Synonyms: sloppiness, wateriness |
| muddle | (noun) a confused multitude of things | Synonyms: clutter, fuddle, jumble, mare's nest, smother, welter |
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| (noun) informal terms for a difficult situation | Synonyms: fix, hole, jam, kettle of fish, mess, pickle |
| mudguard | (noun) a curved piece above the wheel of a bicycle or motorcycle to protect the rider from water or mud thrown up by the wheels | Synonyms: splash-guard, splash guard |
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| mudhif | (noun) a reed hut in the marshlands of Iraq; rare since the marshes were drained | - |
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| mudra | (noun) ritual hand movement in religion or religious dancing, particularly in Hinduism or Buddhism | - |
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| mudskipper | (noun) found in tropical coastal regions of Africa and Asia; able to move on land on strong pectoral fins | Synonyms: mudspringer |
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| mudslide | (noun) a landslide of mud | - |
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| mudslinger | (noun) one who spreads real or alleged scandal about another (usually for political advantage) | Synonyms: muckraker |
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| mudspringer | (noun) found in tropical coastal regions of Africa and Asia; able to move on land on strong pectoral fins | Synonyms: mudskipper |
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| muesli | (noun) mixture of untoasted dry cereals and fruits | - |
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| muezzin | (noun) the Muslim official of a mosque who summons the faithful to prayer from a minaret five times a day | Synonyms: muadhdhin, muazzin |
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| muff | (noun) (sports) dropping the ball | Synonyms: fumble |
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| (noun) a warm tubular covering for the hands | - |
| muffin | (noun) a sweet quick bread baked in a cup-shaped pan | Synonyms: gem |
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| muffle | (noun) a kiln with an inner chamber for firing things at a low temperature | - |
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| muffler | (noun) a scarf worn around the neck | - |
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| (noun) a tubular acoustic device inserted in the exhaust system that is designed to reduce noise | Synonyms: silencer |
| (noun) a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations | Synonyms: damper |
| mufti | (noun) civilian dress worn by a person who is entitled to wear a military uniform | - |
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| (noun) a jurist who interprets Muslim religious law | - |
| mug | (noun) with handle and usually cylindrical | - |
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| (noun) the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British) | Synonyms: countenance, kisser, phiz, physiognomy, smiler, visage |
| (noun) a person who is gullible and easy to take advantage of | Synonyms: chump, fall guy, fool, gull, mark, patsy, soft touch, sucker |
| (noun) the quantity that can be held in a mug | Synonyms: mugful |
| mugful | (noun) the quantity that can be held in a mug | Synonyms: mug |
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| muggee | (noun) a victim of a mugging | - |
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| mugger | (noun) a robber who takes property by threatening or performing violence on the person who is robbed (usually on the street) | - |
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| mugginess | (noun) a state of warm humidity | - |
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| mugging | (noun) assault with intent to rob | - |
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| muggins | (noun) a person who lacks good judgment | Synonyms: fool, sap, saphead, tomfool |
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| mugshot | (noun) a photograph of someone's face (especially one made for police records) | Synonyms: mug shot |
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| mugwort | (noun) any of several weedy composite plants of the genus Artemisia | - |
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| mugwump | (noun) a neutral or uncommitted person (especially in politics) | Synonyms: fencesitter, independent |
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| muishond | (noun) southern African weasel | - |
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| mujahadeen | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadein, mujahadin, mujahedeen, mujahedin, mujahideen, mujahidin |
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| mujahadein | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadin, mujahedeen, mujahedin, mujahideen, mujahidin |
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| mujahadin | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahedeen, mujahedin, mujahideen, mujahidin |
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| mujahedeen | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahadin, mujahedin, mujahideen, mujahidin |
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| mujahedin | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahadin, mujahedeen, mujahideen, mujahidin |
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| mujahid | (noun) a Muslim engaged in what he considers to be a jihad | - |
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| mujahideen | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahadin, mujahedeen, mujahedin, mujahidin |
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| mujahidin | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahadin, mujahedeen, mujahedin, mujahideen |
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| mujik | (noun) a Russian peasant (especially prior to 1917) | Synonyms: moujik, muzhik, muzjik |
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| mujtihad | (noun) an Islamic scholar who engages in ijtihad, the effort to derive rules of divine law from Muslim sacred texts | - |
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| mukataa | (noun) an Arabic word for headquarters or administrative center | - |
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| mulatto | (noun) an offspring of a black and a white parent | - |
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| mulberry | (noun) sweet usually dark purple blackberry-like fruit of any of several mulberry trees of the genus Morus | - |
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| (noun) any of several trees of the genus Morus having edible fruit that resembles the blackberry | Synonyms: mulberry tree |
| mulch | (noun) a protective covering of rotting vegetable matter spread to reduce evaporation and soil erosion | - |
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| mulct | (noun) money extracted as a penalty | Synonyms: amercement, fine |
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| mule | (noun) hybrid offspring of a male donkey and a female horse; usually sterile | - |
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| (noun) a slipper that has no fitting around the heel | Synonyms: scuff |
| muleteer | (noun) a worker who drives mules | Synonyms: mule driver, mule skinner, skinner |
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| muliebrity | (noun) the trait of behaving in ways considered typical for women | Synonyms: femininity |
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| (noun) the state of being an adult woman | Synonyms: womanhood |
| mulishness | (noun) the trait of being difficult to handle or overcome | Synonyms: obstinacy, obstinance, stubbornness |
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| mull | (noun) a term used in Scottish names of promontories | - |
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| mullein | (noun) any of various plants of the genus Verbascum having large usually woolly leaves and terminal spikes of yellow or white or purplish flowers | Synonyms: flannel leaf, velvet plant |
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| muller | (noun) a heavy tool of stone or iron (usually with a flat base and a handle) that is used to grind and mix material (as grain or drugs or pigments) against a slab of stone | Synonyms: pestle, pounder |
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| (noun) a vessel in which wine is mulled | - |
| (noun) a reflective thinker characterized by quiet contemplation | Synonyms: muser, ponderer, ruminator |
| mullet | (noun) bottom dwelling marine warm water fishes with two barbels on the chin | - |
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| (noun) freshwater or coastal food fishes a spindle-shaped body; found worldwide | Synonyms: gray mullet, grey mullet |
| (noun) highly valued lean flesh of marine or freshwater mullet | Synonyms: gray mullet, grey mullet |
| mulligan | (noun) Irish version of burgoo | Synonyms: Irish burgoo, mulligan stew |
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| mulligatawny | (noun) a soup of eastern India that is flavored with curry; prepared with a meat or chicken base | - |
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| mullion | (noun) a nonstructural vertical strip between the casements or panes of a window (or the panels of a screen) | - |
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