| actinotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: irradiation, radiation, radiation therapy, radiotherapy |
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| aepyornis | (noun) huge (to 9 ft.) extinct flightless bird of Madagascar | Synonyms: elephant bird |
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| allotropy | (noun) the phenomenon of an element existing in two or more physical forms | Synonyms: allotropism |
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| amidopyrine | (noun) a white crystalline substance used as an analgesic and antipyretic | Synonyms: aminopyrine |
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| aminopyrine | (noun) a white crystalline substance used as an analgesic and antipyretic | Synonyms: amidopyrine |
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| anisotropy | (noun) the property of being anisotropic; having a different value when measured in different directions | - |
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| antipyresis | (noun) medication with antipyretics to treat a fever | - |
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| antipyretic | (noun) any medicine that lowers body temperature to prevent or alleviate fever | Synonyms: febrifuge |
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| aromatherapy | (noun) the therapeutic use of aromatic plant extracts and essential oils in baths or massage | - |
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| arsenopyrite | (noun) a silver-white or grey ore of arsenic | Synonyms: mispickel |
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| arthroscopy | (noun) a minimally invasive operation to repair a damaged joint; the surgeon examines the joint with an arthroscope while making repairs through a small incision | - |
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| atopy | (noun) an allergic reaction that becomes apparent in a sensitized person only minutes after contact | Synonyms: atopic allergy, immediate allergy, type I allergic reaction |
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| autotypy | (noun) process for producing permanent prints in a carbon pigment | Synonyms: autotype |
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| canopy | (noun) a covering (usually of cloth) that serves as a roof to shelter an area from the weather | - |
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| (noun) the umbrellalike part of a parachute that fills with air | - |
| (noun) the transparent covering of an aircraft cockpit | - |
| capybara | (noun) pig-sized tailless South American amphibious rodent with partly webbed feet; largest living rodent | Synonyms: capibara, Hydrochoerus hydrochaeris |
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| celioscopy | (noun) endoscopic examination of the abdomen through the abdominal wall | - |
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| chalcopyrite | (noun) a yellow copper ore (CuFeS2) made up of copper and iron sulfide | Synonyms: copper pyrites |
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| cheiloscopy | (noun) a forensic investigation technique that deals with identification of humans based on lip traces. | - |
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| chemotherapy | (noun) the use of chemical agents to treat or control disease (or mental illness) | - |
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| chlorpyrifos | (noun) a common organophosphate insecticide | - |
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| chrysotherapy | (noun) the use of chemicals containing gold for treating diseases (such as rheumatoid arthritis) | - |
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| colonoscopy | (noun) visual examination of the colon (with a colonoscope) from the cecum to the rectum; requires sedation | - |
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| copy | (noun) a thing made to be similar or identical to another thing | - |
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| (noun) a reproduction of a written record (e.g. of a legal or school record) | Synonyms: transcript |
| (noun) matter to be printed; exclusive of graphical materials | Synonyms: written matter |
| (noun) material suitable for a journalistic account | - |
| copybook | (noun) a book containing models of good penmanship; used in teaching penmanship | - |
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| copycat | (noun) someone who copies the words or behavior of another | Synonyms: ape, aper, emulator, imitator |
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| copyhold | (noun) a medieval form of land tenure in England; a copyhold was a parcel of land granted to a peasant by the lord of the manor in return for agricultural services | - |
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| copyholder | (noun) mechanical device used in printing; holds the copy for the compositor | - |
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| copying | (noun) an act of copying | - |
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| copyist | (noun) someone employed to make written copies of documents and manuscripts | Synonyms: scribe, scrivener |
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| copyreader | (noun) an editor who prepares text for publication | Synonyms: copy editor, text editor |
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| copyright | (noun) a document granting exclusive right to publish and sell literary or musical or artistic work | Synonyms: right of first publication |
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| copywriter | (noun) a person employed to write advertising or publicity copy | - |
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| counterspy | (noun) a spy who works against enemy espionage | Synonyms: mole |
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| culdoscopy | (noun) endoscopic examination of a woman's pelvic organs by the insertion of a culdoscope through the vagina | - |
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| electrotherapy | (noun) the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis) | Synonyms: electric healing, electrical healing, galvanism |
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| empyema | (noun) a collection of pus in a body cavity (especially in the lung cavity) | - |
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| empyrean | (noun) the apparent surface of the imaginary sphere on which celestial bodies appear to be projected | Synonyms: celestial sphere, firmament, heavens, sphere, vault of heaven, welkin |
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| endoscopy | (noun) visual examination of the interior of a hollow body organ by use of an endoscope | - |
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| enthalpy | (noun) (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure | Synonyms: H, heat content, total heat |
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| entropy | (noun) (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work | Synonyms: randomness, S |
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| (noun) (communication theory) a numerical measure of the uncertainty of an outcome | Synonyms: information, selective information |
| extropy | (noun) the prediction that human intelligence and technology will enable life to expand in an orderly way throughout the entire universe | - |
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| fetoscopy | (noun) prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood | Synonyms: foetoscopy |
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| floppy | (noun) a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer | Synonyms: diskette, floppy disk |
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| fluoroscopy | (noun) examination of body structures using a fluoroscope | - |
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| foetoscopy | (noun) prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood | Synonyms: fetoscopy |
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| gastroscopy | (noun) visual examination of the stomach by means of a gastroscope inserted through the esophagus | - |
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| gempylid | (noun) snake mackerels; elongated marine fishes with oily flesh; resembles mackerels; found worldwide | - |
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| gonioscopy | (noun) an examination of the front part of the eye to check the angle where the iris meets the cornea; it is used to distinguish between open-angle glaucoma and closed-angle glaucoma | - |
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| guppy | (noun) small freshwater fish of South America and the West Indies; often kept in aquariums | Synonyms: Lebistes reticulatus, rainbow fish |
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| harpy | (noun) large black-and-white crested eagle of tropical America | Synonyms: Harpia harpyja, harpy eagle |
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| (noun) any of various fruit bats of the genus Nyctimene distinguished by nostrils drawn out into diverging tubes | Synonyms: harpy bat, tube-nosed bat, tube-nosed fruit bat |
| (noun) a malicious woman with a fierce temper | Synonyms: hellcat, vixen |
| heliotherapy | (noun) therapeutic exposure to sunlight | Synonyms: insolation |
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| hippy | (noun) someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle | Synonyms: flower child, hippie, hipster |
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| horoscopy | (noun) the drawing up and interpretation of horoscopes | - |
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| hushpuppy | (noun) deep-fried cornbread ball (southern) | Synonyms: hush puppy |
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| hydrotherapy | (noun) the internal and external use of water in the treatment of disease | Synonyms: hydropathy |
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| hypermetropy | (noun) abnormal condition in which vision for distant objects is better than for near objects | Synonyms: farsightedness, hypermetropia, hyperopia, longsightedness |
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| hyperpyrexia | (noun) extremely high fever (especially in children) | - |
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| hypnotherapy | (noun) the use of hypnosis in psychotherapy | - |
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| hysteroscopy | (noun) visual examination of the uterus and uterine lining using an endoscope inserted through the vagina | - |
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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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| iontotherapy | (noun) therapy that uses a local electric current to introduce the ions of a medicine into the tissues | Synonyms: electromotive drug administration, EMDA, ionic medication, iontophoresis |
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| isotropy | (noun) (physics) the property of being isotropic; having the same value when measured in different directions | Synonyms: symmetry |
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| jalopy | (noun) a car that is old and unreliable | Synonyms: bus, heap |
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| kelpy | (noun) (Scottish folklore) water spirit in the form of a horse that likes to drown its riders | Synonyms: kelpie |
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| keratoscopy | (noun) examination of the cornea with a keratoscope to detect irregularities in its anterior surface | - |
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| laparoscopy | (noun) laparotomy performed with a laparoscope that makes a small incision to examine the abdominal cavity (especially the ovaries and Fallopian tubes) | - |
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| leppy | (noun) motherless calf in a range herd of cattle | Synonyms: dogie, dogy |
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| lycanthropy | (noun) (folklore) the magical ability of a person to assume the characteristics of a wolf | - |
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| methapyrilene | (noun) antihistamine used to treat allergic responses (as rhinitis or dermatitis or pruritus) | - |
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| micropyle | (noun) minute opening in the wall of an ovule through which the pollen tube enters | - |
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| microscopy | (noun) research with the use of microscopes | - |
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| misanthropy | (noun) a disposition to dislike and mistrust other people | - |
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| (noun) hatred of mankind | - |
| nappy | (noun) garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement | Synonyms: diaper, napkin |
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| ophthalmoscopy | (noun) examination of the interior of an eye using an ophthalmoscope | - |
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| orthoepy | (noun) a term formerly used for the part of phonology that dealt with the `correct' pronunciation of words and its relation to `correct' orthography | - |
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| (noun) the way a word or a language is customarily spoken | Synonyms: pronunciation |
| papyrus | (noun) a document written on papyrus | - |
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| (noun) tall sedge of the Nile valley yielding fiber that served many purposes in historic times | Synonyms: Cyperus papyrus, Egyptian paper reed, Egyptian paper rush, paper plant, paper rush |
| (noun) paper made from the papyrus plant by cutting it in strips and pressing it flat; used by ancient Egyptians and Greeks and Romans | - |
| parthenocarpy | (noun) (botany) the development of a fruit without fertilization or seeds | - |
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| phenazopyridine | (noun) analgesic (trade name Pyridium) used to treat urinary tract infections | Synonyms: Pyridium |
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| philanthropy | (noun) voluntary promotion of human welfare | Synonyms: philanthropic gift |
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| photocopy | (noun) a photographic copy of written or printed or graphic work | - |
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| phototherapy | (noun) the use of strong light to treat acne or hyperbilirubinemia of the newborn | - |
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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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| polypropylene | (noun) a polymer of propylene used as a thermoplastic molding material | Synonyms: polypropene |
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| poppy | (noun) annual or biennial or perennial herbs having showy flowers | - |
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| poppycock | (noun) senseless talk | Synonyms: hooey, stuff, stuff and nonsense |
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| proctoscopy | (noun) visual examination of the rectum and the end of the colon by means of a proctoscope | - |
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| propyl | (noun) the monovalent organic group C3H7- obtained from propane | Synonyms: propyl group, propyl radical |
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| propylene | (noun) a flammable gas obtained by cracking petroleum; used in organic synthesis | Synonyms: propene |
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| propylthiouracil | (noun) a crystalline compound used as an antithyroid drug in the treatment of goiter | - |
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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 |
| puppy | (noun) a young dog | - |
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| (noun) an inexperienced young person | Synonyms: pup |
| pya | (noun) 100 pyas equal 1 kyat in Myanmar | - |
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| pyaemia | (noun) septicemia caused by pus-forming bacteria being released from an abscess | Synonyms: pyemia |
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| pycnidium | (noun) flask-shaped asexual structure containing conidia | - |
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| pycnodysostosis | (noun) a form of dwarfism accompanied by fragile bones and bad teeth | - |
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| pycnogonid | (noun) any of various small spiderlike marine arthropods having small thin bodies and long slender legs | Synonyms: sea spider |
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| pycnometry | (noun) The determination of liquid density by weighing the liquid in a container (pycnometer) of known volume. | - |
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| pycnosis | (noun) a degenerative state of the cell nucleus | Synonyms: pyknosis |
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| pyelitis | (noun) inflammation of the renal pelvis | - |
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