| myelogram | (noun) X-ray film of the spinal cord and spinal nerve roots and subarachnoid space | - |
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| myelography | (noun) roentgenography of the spinal cord to detect possible lesions (usually after injection of a contrast medium into the subarachnoid space) | - |
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| myogram | (noun) a graphical recording of muscle activity | - |
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| myriagram | (noun) one ten thousandth of a centner | Synonyms: myg |
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| nanogram | (noun) one billionth (1/1,000,000,000) gram | Synonyms: ng |
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| newsgroup | (noun) an area on a computer network, especially on the internet, devoted to the discussion of a specified topic | - |
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| nigra | (noun) (ethnic slur) extremely offensive name for a Black person | Synonyms: jigaboo, nigga, nigger |
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| nomogram | (noun) a graphic representation of numerical relations | Synonyms: nomograph |
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| nomograph | (noun) a graphic representation of numerical relations | Synonyms: nomogram |
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| nonaggression | (noun) a policy of not initiating hostilities | - |
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| nutgrass | (noun) a widely distributed perennial sedge having small edible nutlike tubers | Synonyms: Cyperus rotundus, nut grass, nut sedge, nutsedge |
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| oceanographer | (noun) a scientist who studies physical and biological aspects of the seas | - |
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| oceanography | (noun) the branch of science dealing with physical and biological aspects of the oceans | Synonyms: oceanology |
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| ogre | (noun) (folklore) a giant who likes to eat human beings | - |
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| (noun) a cruel wicked and inhuman person | Synonyms: demon, devil, fiend, monster |
| ogress | (noun) (folklore) a female ogre | - |
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| oleography | (noun) the art or process of producing chromolithographs printed on cloth to imitate an oil painting. | - |
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| orograph | (noun) A machine for use in making topographical maps. | - |
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| orography | (noun) the science of mountains | Synonyms: orology |
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| orthography | (noun) a method of representing the sounds of a language by written or printed symbols | Synonyms: writing system |
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| oscillogram | (noun) the recording produced by an oscillograph | - |
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| oscillograph | (noun) a device for making a record of the wave forms of fluctuating voltages or currents | - |
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| outgrowth | (noun) a natural prolongation or projection from a part of an organism either animal or plant | Synonyms: appendage, process |
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| (noun) the gradual beginning or coming forth | Synonyms: emergence, growth |
| (noun) a natural consequence of development | Synonyms: branch, offset, offshoot |
| overgrowth | (noun) a profusion of growth on or over something else | - |
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| (noun) excessive size; usually caused by excessive secretion of growth hormone from the pituitary gland | Synonyms: giantism, gigantism |
| palaeoethnography | (noun) the ethnography of paleolithic humans | Synonyms: paleoethnography |
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| palaeogeography | (noun) the study of the geography of ancient times or ancient epochs | Synonyms: paleogeography |
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| paleoethnography | (noun) the ethnography of paleolithic humans | Synonyms: palaeoethnography |
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| paleogeography | (noun) the study of the geography of ancient times or ancient epochs | Synonyms: palaeogeography |
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| paleographer | (noun) an archeologist skilled in paleography | Synonyms: paleographist |
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| paleographist | (noun) an archeologist skilled in paleography | Synonyms: paleographer |
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| paleography | (noun) the study of ancient forms of writing (and the deciphering of them) | - |
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| palsgrave | (noun) (Middle Ages) the lord of a palatinate who exercised sovereign powers over his lands | Synonyms: palatine |
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| pantograph | (noun) mechanical device used to copy a figure or plan on a different scale | - |
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| parabolograph | (noun) An outdated instrument for drawing parabolas. | - |
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| paragram | (noun) a pun made by changing the letters of a word, especially the initial letter. | - |
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| paragraph | (noun) one of several distinct subdivisions of a text intended to separate ideas; the beginning is usually marked by a new indented line | - |
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| paragrapher | (noun) a writer of paragraphs (as for publication on the editorial page of a newspaper) | - |
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| parallelogram | (noun) a quadrilateral whose opposite sides are both parallel and equal in length | - |
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| paygrade | (noun) rank in a military organization | Synonyms: military rank, military rating, rating |
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| pedigree | (noun) ancestry of a purebred animal | Synonyms: bloodline |
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| (noun) the hereditary derivation of an individual | Synonyms: ancestry, blood, blood line, bloodline, descent, line, line of descent, lineage, origin, parentage, stemma, stock |
| (noun) line of descent of a purebred animal | - |
| pellagra | (noun) a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments | Synonyms: Alpine scurvy, maidism, mal de la rosa, mal rosso, mayidism, Saint Ignatius' itch |
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| pentagram | (noun) a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon | Synonyms: pentacle, pentangle |
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| peregrination | (noun) traveling or wandering around | - |
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| peregrine | (noun) a widely distributed falcon formerly used in falconry | Synonyms: Falco peregrinus, peregrine falcon |
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| phlebogram | (noun) an X ray of a vein injected with a radiopaque contrast medium | Synonyms: venogram |
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| phonogram | (noun) any written symbol standing for a sound or syllable or morpheme or word | - |
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| phonograph | (noun) machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically | Synonyms: record player |
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| photoengraving | (noun) an engraving used to reproduce an illustration | Synonyms: halftone, halftone engraving |
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| photograph | (noun) a representation of a person or scene in the form of a print or transparent slide or in digital format | Synonyms: exposure, photo, pic, picture |
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| photographer | (noun) someone who takes photographs professionally | Synonyms: lensman |
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| photography | (noun) the act of taking and printing photographs | Synonyms: picture taking |
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| (noun) the occupation of taking and printing photographs or making movies | - |
| (noun) the process of producing images of objects on photosensitive surfaces | - |
| photogravure | (noun) using photography to produce a plate for printing | Synonyms: rotogravure |
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| (noun) an intaglio print produced by gravure | Synonyms: gravure, heliogravure |
| (noun) printing from an intaglio plate prepared by photographic methods | - |
| photoheliograph | (noun) a telescope, with a camera attached, used to photograph the Sun. | - |
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| photolithograph | (noun) a lithograph produced by photographically produced plates | - |
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| photolithography | (noun) a planographic printing process using plates made from a photographic image | - |
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| photomicrograph | (noun) a photograph taken with the help of a microscope | - |
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| phototelegraph | (noun) an apparatus for transmitting pictures by phototelegraphy. | - |
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| phototelegraphy | (noun) an early technology for the transmission of facsimiles. | - |
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| physiography | (noun) the study of physical features of the earth's surface | Synonyms: physical geography |
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| pictograph | (noun) a graphic character used in picture writing | - |
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| pilgrim | (noun) someone who journeys in foreign lands | - |
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| (noun) someone who journeys to a sacred place as an act of religious devotion | - |
| pilgrimage | (noun) a journey to a sacred place | Synonyms: pilgrim's journey |
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| planography | (noun) the process of printing from a surface on which the printing areas are not raised but are ink-receptive (as opposed to ink repellent) | Synonyms: planographic printing |
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| plantigrade | (noun) an animal that walks with the entire sole of the foot touching the ground as e.g. bears and human beings | Synonyms: plantigrade mammal |
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| playground | (noun) yard consisting of an outdoor area for children's play | - |
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| (noun) an area where many people go for recreation, holidays or other purposes | Synonyms: resort area, vacation spot |
| plethysmograph | (noun) a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains) | - |
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| pneumoencephalogram | (noun) an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast | Synonyms: encephalogram |
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| pogrom | (noun) organized persecution of an ethnic group (especially Jews) | - |
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| polarography | (noun) an electrochemical method of chemical analysis | - |
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| polygraph | (noun) a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration) | - |
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| pomegranate | (noun) large globular fruit having many seeds with juicy red pulp in a tough brownish-red rind | - |
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| (noun) shrub or small tree native to southwestern Asia having large red many-seeded fruit | Synonyms: pomegranate tree, Punica granatum |
| pornographer | (noun) someone who presents shows or sells writing or pictures that are sexually explicit in violation of the community mores | Synonyms: porn merchant |
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| pornography | (noun) creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire | Synonyms: erotica, porn, porno, smut |
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| postgraduate | (noun) a student who continues studies after graduation | Synonyms: grad student, graduate student |
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| primigravida | (noun) (obstetrics) a woman who is pregnant for the first time | Synonyms: gravida I |
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| program | (noun) a performance (or series of performances) at a public presentation | Synonyms: programme |
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| (noun) a series of steps to be carried out or goals to be accomplished | Synonyms: plan, programme |
| (noun) a system of projects or services intended to meet a public need | Synonyms: programme |
| (noun) an announcement of the events that will occur as part of a theatrical or sporting event | Synonyms: programme |
| (noun) a radio or television show | Synonyms: broadcast, programme |
| (noun) (computer science) a sequence of instructions that a computer can interpret and execute | Synonyms: computer program, computer programme, programme |
| (noun) a document stating the aims and principles of a political party | Synonyms: platform, political platform, political program |
| (noun) an integrated course of academic studies | Synonyms: course of study, curriculum, programme, syllabus |
| programing | (noun) creating a sequence of instructions to enable the computer to do something | Synonyms: computer programing, computer programming, programming |
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| (noun) setting an order and time for planned events | Synonyms: programming, scheduling |
| programma | (noun) an edict that has been publicly posted | - |
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| programmability | (noun) the abstract capability of being programmable. | - |
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| programme | (noun) a performance (or series of performances) at a public presentation | Synonyms: program |
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| (noun) a series of steps to be carried out or goals to be accomplished | Synonyms: plan, program |
| (noun) a system of projects or services intended to meet a public need | Synonyms: program |
| (noun) an announcement of the events that will occur as part of a theatrical or sporting event | Synonyms: program |
| (noun) a radio or television show | Synonyms: broadcast, program |
| (noun) (computer science) a sequence of instructions that a computer can interpret and execute | Synonyms: computer program, computer programme, program |
| (noun) an integrated course of academic studies | Synonyms: course of study, curriculum, program, syllabus |
| programmer | (noun) a person who designs and writes and tests computer programs | Synonyms: coder, computer programmer, software engineer |
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| programming | (noun) creating a sequence of instructions to enable the computer to do something | Synonyms: computer programing, computer programming, programing |
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| (noun) setting an order and time for planned events | Synonyms: programing, scheduling |
| progress | (noun) the act of moving forward (as toward a goal) | Synonyms: advance, advancement, forward motion, onward motion, procession, progression |
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| (noun) gradual improvement or growth or development | Synonyms: advancement |
| (noun) a movement forward | Synonyms: advance, progression |
| progression | (noun) the act of moving forward (as toward a goal) | Synonyms: advance, advancement, forward motion, onward motion, procession, progress |
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| (noun) a movement forward | Synonyms: advance, progress |
| (noun) a series with a definite pattern of advance | Synonyms: patterned advance |
| progressive | (noun) a person who favors a political philosophy of progress and reform and the protection of civil liberties | Synonyms: liberal, liberalist |
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| (noun) a tense of verbs used in describing action that is on-going | Synonyms: continuous tense, imperfect, imperfect tense, progressive tense |
| progressiveness | (noun) advancement toward better conditions or policies or methods | Synonyms: progressivity |
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| progressivism | (noun) the political orientation of those who favor progress toward better conditions in government and society | - |
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| progressivity | (noun) advancement toward better conditions or policies or methods | Synonyms: progressiveness |
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| psychographics | (noun) market research or statistics classifying population groups according to psychological variables (as attitudes, values, or fears); also: variables or trends identified through such research. | - |
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| pyelogram | (noun) an X ray of the kidneys and ureters | - |
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| pyelography | (noun) roentgenography of the kidney and ureters (usually after injection with a radiopaque dye) | - |
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| pyrograph | (noun) a design produced by pyrography | - |
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| pyrographer | (noun) an artist who practices pyrography | - |
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| pyrography | (noun) the act of producing drawings on wood or leather by using heated tools or a fine flame | - |
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| quackgrass | (noun) European grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed | Synonyms: Agropyron repens, couch grass, dog grass, quack grass, quick grass, witch grass, witchgrass |
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| radiogram | (noun) a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) | Synonyms: radiograph, shadowgraph, skiagram, skiagraph |
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| (noun) a message transmitted by wireless telegraphy | - |
| radiograph | (noun) a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays) | Synonyms: radiogram, shadowgraph, skiagram, skiagraph |
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| radiographer | (noun) a person who makes radiographs | - |
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| radiography | (noun) photography that uses other kinds of radiation than visible light | - |
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| (noun) the process of making a radiograph; producing an image on a radiosensitive surface by radiation other than visible light | Synonyms: skiagraphy |
| radiophotograph | (noun) a photograph transmitted by radio waves | Synonyms: radiophoto |
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| radiophotography | (noun) transmission of photographs by radio waves | - |
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