| parabolograph | (noun) An outdated instrument for drawing parabolas. | - |
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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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| paraparesis | (noun) a slight paralysis or weakness of both legs | - |
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| parapet | (noun) fortification consisting of a low wall | Synonyms: breastwork |
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| (noun) a low wall along the edge of a roof or balcony | - |
| paraph | (noun) a flourish added after or under your signature (originally to protect against forgery) | - |
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| paraphernalia | (noun) equipment consisting of miscellaneous articles needed for a particular operation or sport etc. | Synonyms: appurtenance, gear |
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| paraphilia | (noun) abnormal sexual activity | - |
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| paraphrase | (noun) rewording for the purpose of clarification | Synonyms: paraphrasis |
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| paraphrasis | (noun) rewording for the purpose of clarification | Synonyms: paraphrase |
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| paraphrenia | (noun) a form of schizophrenia characterized by delusions (of persecution or grandeur or jealousy); symptoms may include anger and anxiety and aloofness and doubts about gender identity; unlike other types of schizophrenia the patients are usually presentable and (if delusions are not acted on) may function in an apparently normal manner | Synonyms: paranoic type schizophrenia, paranoid schizophrenia, paraphrenic schizophrenia |
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| paraphysis | (noun) a sterile simple or branched filament or hair borne among sporangia; may be pointed or clubbed | - |
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| paraplegia | (noun) paralysis of the lower half of the body (most often as a result of trauma) | - |
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| paraplegic | (noun) a person who has paraplegia (is paralyzed from the waist down) | - |
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| parapodium | (noun) one of a pair of fleshy appendages of a polychete annelid that functions in locomotion and breathing | - |
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| parapraxis | (noun) a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc. | Synonyms: miscue, slip-up, slip |
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| paraprofessional | (noun) a trained worker who is not a member of a profession but who assists a professional | - |
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| parapsychologist | (noun) someone who studies the evidence for such psychological phenomena as psychokinesis and telepathy and clairvoyance | - |
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| parapsychology | (noun) phenomena that appear to contradict physical laws and suggest the possibility of causation by mental processes | Synonyms: psychic phenomena, psychic phenomenon |
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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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| 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 | - |
| 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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| phototherapy | (noun) the use of strong light to treat acne or hyperbilirubinemia of the newborn | - |
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| physiography | (noun) the study of physical features of the earth's surface | Synonyms: physical geography |
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| physiotherapist | (noun) therapist who treats injury or dysfunction with exercises and other physical treatments of the disorder | Synonyms: physical therapist |
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| physiotherapy | (noun) therapy that uses physical agents: exercise and massage and other modalities | Synonyms: physiatrics, physical therapy |
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| phytotherapy | (noun) the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet) | Synonyms: botanical medicine, herbal therapy |
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| pictograph | (noun) a graphic character used in picture writing | - |
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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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| 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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| 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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| 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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| 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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| psychotherapeutics | (noun) the branch of psychiatry concerned with psychological methods | Synonyms: mental hygiene, psychotherapy |
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| psychotherapist | (noun) a therapist who deals with mental and emotional disorders | Synonyms: clinical psychologist |
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| psychotherapy | (noun) the treatment of mental or emotional problems by psychological means | - |
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| (noun) the branch of psychiatry concerned with psychological methods | Synonyms: mental hygiene, psychotherapeutics |
| 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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| quadraphony | (noun) a stereophonic sound recording or reproducing system using four separate channels | Synonyms: quadraphonic system, quadriphonic system |
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| 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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| radiotelegraph | (noun) the use of radio to send telegraphic messages (usually by Morse code) | Synonyms: radiotelegraphy, wireless telegraph, wireless telegraphy |
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| (noun) telegraphy that uses transmission by radio rather than by wire | Synonyms: radiotelegraphy, wireless telegraphy |
| radiotelegraphy | (noun) the use of radio to send telegraphic messages (usually by Morse code) | Synonyms: radiotelegraph, wireless telegraph, wireless telegraphy |
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| (noun) telegraphy that uses transmission by radio rather than by wire | Synonyms: radiotelegraph, wireless telegraphy |
| radiotherapist | (noun) a medical specialist who uses radioactive substances and X-rays in the treatment of disease | Synonyms: radiologist |
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| radiotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: actinotherapy, irradiation, radiation, radiation therapy |
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| rap | (noun) the act of hitting vigorously | Synonyms: belt, knock, whack, whang |
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| (noun) a reproach for some lapse or misdeed | Synonyms: blame |
| (noun) voluble conversation | - |
| (noun) genre of African-American music of the 1980s and 1990s in which rhyming lyrics are chanted to a musical accompaniment; several forms of rap have emerged | Synonyms: hip-hop, rap music |
| (noun) the sound made by a gentle blow | Synonyms: pat, tap |
| (noun) a gentle blow | Synonyms: strike, tap |
| rapaciousness | (noun) extreme gluttony | Synonyms: edacity, esurience, rapacity, voraciousness, voracity |
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| (noun) an excessive desire for wealth (usually in large amounts) | Synonyms: greediness, voraciousness |
| (noun) (of an animal, usually a bird) The quality of subsisting off live prey. | Synonyms: predaceousness, predaciousness, rapacity |
| rapacity | (noun) reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins) | Synonyms: avarice, avaritia, covetousness, greed |
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| (noun) extreme gluttony | Synonyms: edacity, esurience, rapaciousness, voraciousness, voracity |
| (noun) (of an animal, usually a bird) The quality of subsisting off live prey. | Synonyms: predaceousness, predaciousness, rapaciousness |
| rape | (noun) the crime of forcing a person to submit to sexual intercourse against his or her will | Synonyms: assault, ravishment, violation |
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| (noun) the act of despoiling a country in warfare | Synonyms: rapine |
| (noun) Eurasian plant cultivated for its seed and as a forage crop | Synonyms: Brassica napus, colza |
| raper | (noun) someone who forces another to have sexual intercourse | Synonyms: rapist |
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| rapeseed | (noun) seed of rape plants; source of an edible oil | - |
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| raphe | (noun) a ridge that forms a seam between two parts | Synonyms: rhaphe |
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| raphia | (noun) leaf fibers of the raffia palm tree; used to make baskets and mats etc. | Synonyms: raffia |
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| rapid | (noun) a part of a river where the current is very fast | - |
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| rapidity | (noun) a rate that is rapid | Synonyms: celerity, quickness, rapidness, speediness |
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| rapidness | (noun) a rate that is rapid | Synonyms: celerity, quickness, rapidity, speediness |
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| rapier | (noun) a straight sword with a narrow blade and two edges | Synonyms: tuck |
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| rapine | (noun) the act of despoiling a country in warfare | Synonyms: rape |
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| rapist | (noun) someone who forces another to have sexual intercourse | Synonyms: raper |
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| rappee | (noun) strong snuff made from dark coarse tobacco | - |
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| rappel | (noun) (mountaineering) a descent of a vertical cliff or wall made by using a doubled rope that is fixed to a higher point and wrapped around the body | Synonyms: abseil |
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| rappeller | (noun) a person who descends down a nearly vertical face by using a doubled rope that is wrapped around the body and attached to some high point | Synonyms: abseiler |
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| rapper | (noun) a device (usually metal and ornamental) attached by a hinge to a door | Synonyms: doorknocker, knocker |
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| (noun) someone who performs rap music | - |
| rapport | (noun) a relationship of mutual understanding or trust and agreement between people | Synonyms: resonance |
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| rapporteur | (noun) a recorder appointed by a committee to prepare reports of the meetings | - |
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| rapprochement | (noun) the reestablishing of cordial relations | Synonyms: reconciliation |
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| rapscallion | (noun) one who is playfully mischievous | Synonyms: imp, monkey, rascal, scalawag, scallywag, scamp |
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| (noun) a deceitful and unreliable scoundrel | Synonyms: knave, rascal, rogue, scalawag, scallywag, varlet |
| raptor | (noun) any of numerous carnivorous birds that hunt and kill other animals | Synonyms: bird of prey, raptorial bird |
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| rapture | (noun) a state of being carried away by overwhelming emotion | Synonyms: ecstasy, exaltation, raptus, transport |
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| (noun) a state of elated bliss | Synonyms: ecstasy |
| raptus | (noun) a state of being carried away by overwhelming emotion | Synonyms: ecstasy, exaltation, rapture, transport |
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| (noun) a sudden occurrence (or recurrence) of a disease | Synonyms: ictus, seizure |
| rattrap | (noun) a trap for catching rats | - |
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| (noun) filthy run-down dilapidated housing | - |
| (noun) a difficult entangling situation | - |
| roentgenography | (noun) radiography that uses X-rays to produce a roentgenogram | Synonyms: X-ray photography |
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| sarape | (noun) a long brightly colored shawl; worn mainly by Mexican men | Synonyms: serape |
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| satrap | (noun) a governor of a province in ancient Persia | - |
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| scintigraph | (noun) The apparatus used to make a scintigram. | Synonyms: scintiscanner |
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| scrap | (noun) the act of fighting; any contest or struggle | Synonyms: combat, fight, fighting |
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| (noun) a small piece of something that is left over after the rest has been used | - |
| (noun) a small fragment of something broken off from the whole | Synonyms: bit, chip, flake, fleck |
| (noun) worthless material that is to be disposed of | Synonyms: rubbish, trash |
| scrapbook | (noun) an album into which clippings or notes or pictures can be pasted | - |
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| scrape | (noun) an indication of damage | Synonyms: mark, scar, scratch |
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| (noun) a deep bow with the foot drawn backwards (indicating excessive humility) | Synonyms: scraping |
| (noun) a harsh noise made by scraping | Synonyms: scraping, scratch, scratching |
| (noun) an abraded area where the skin is torn or worn off | Synonyms: abrasion, excoriation, scratch |
| scraper | (noun) any of various hand tools for scraping | - |
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| scrapheap | (noun) pile of discarded metal | - |
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| (noun) an accumulation of refuse and discarded matter | Synonyms: garbage heap, junk heap, junk pile, refuse heap, rubbish heap, trash heap, trash pile |
| scrapie | (noun) a fatal disease of sheep characterized by chronic itching and loss of muscular control and progressive degeneration of the central nervous system | - |
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| scraping | (noun) a deep bow with the foot drawn backwards (indicating excessive humility) | Synonyms: scrape |
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| (noun) a harsh noise made by scraping | Synonyms: scrape, scratch, scratching |
| (noun) (usually plural) a fragment scraped off of something and collected | - |
| scrapper | (noun) someone who fights (or is fighting) | Synonyms: battler, belligerent, combatant, fighter |
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| scrappiness | (noun) the trait of being scrappy and pugnacious | - |
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| (noun) The quality or state of being tenacious, energetic, spunky. | Synonyms: feistiness |
| scrapple | (noun) scraps of meat (usually pork) boiled with cornmeal and shaped into loaves for slicing and frying | - |
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| scraps | (noun) food that is discarded (as from a kitchen) | Synonyms: food waste, garbage, refuse |
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