| adiabaticity | (noun) The condition of occurring without gain or loss of heat (and thus with no change in entropy, in the quasistatic approximation). | - |
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| adiaphoron | (noun) (Stoic philosophy) a matter having no moral merit or demerit. | - |
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| (noun) a religious ceremonial or ritual observance that is held to be an affair of the individual conscience because it is neither forbidden nor enjoined by the scriptures. | - |
| adience | (noun) (psychology) an urge to accept or approach a situation or an object | - |
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| adieu | (noun) a farewell remark | Synonyms: adios, arrivederci, au revoir, auf wiedersehen, bye-bye, bye, cheerio, good-by, good-bye, good day, goodby, goodbye, sayonara, so long |
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| adios | (noun) a farewell remark | Synonyms: adieu, arrivederci, au revoir, auf wiedersehen, bye-bye, bye, cheerio, good-by, good-bye, good day, goodby, goodbye, sayonara, so long |
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| adiposeness | (noun) having the property of containing fat | Synonyms: adiposity, fattiness |
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| adiposis | (noun) the property of excessive fatness | Synonyms: corpulence, overweight, stoutness |
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| adiposity | (noun) having the property of containing fat | Synonyms: adiposeness, fattiness |
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| adit | (noun) a nearly horizontal passage from the surface into a mine | - |
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| anadiplosis | (noun) repetition of the final words of a sentence or line at the beginning of the next | Synonyms: reduplication |
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| andradite | (noun) a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone | - |
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| armadillo | (noun) burrowing chiefly nocturnal mammal with body covered with strong horny plates | - |
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| atmoradiograph | (noun) a device which measures the frequency of occurrence of atmospherics. | - |
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| autoradiograph | (noun) a radiogram produced by radiation emitted by the specimen being photographed | - |
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| autoradiography | (noun) producing a radiograph by means of the radiation emitted from the specimen being photographed | - |
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| azadirachtin | (noun) insecticide | - |
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| badinage | (noun) frivolous banter | - |
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| beading | (noun) a beaded molding for edging or decorating furniture | Synonyms: astragal, bead, beadwork |
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| (noun) ornamentation with beads | Synonyms: beadwork |
| beheading | (noun) killing by cutting off the head | Synonyms: decapitation |
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| (noun) execution by cutting off the victim's head | Synonyms: decapitation |
| brigadier | (noun) a general officer ranking below a major general | Synonyms: brigadier general |
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| butadiene | (noun) a gaseous hydrocarbon C4H6; used in making synthetic rubbers | - |
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| caladium | (noun) any plant of the genus Caladium cultivated for their ornamental foliage variously patterned in white or pink or red | - |
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| cladistics | (noun) a taxonomic system of classifying species based on the branching patterns of cladograms that are built to infer phylogenetic relations | Synonyms: cladistic analysis |
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| coloradillo | (noun) handsome shrub with showy orange to scarlet or crimson flowers; Florida and West Indies to Mexico and Brazil | Synonyms: Hamelia erecta, Hamelia patens, scarlet bush, scarlet hamelia |
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| contadino | (noun) an Italian farmer | - |
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| contradiction | (noun) the speech act of contradicting someone | - |
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| (noun) (logic) a statement that is necessarily false | Synonyms: contradiction in terms |
| (noun) opposition between two conflicting forces or ideas | - |
| contradictoriness | (noun) the relation that exists when opposites cannot coexist | - |
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| contradictory | (noun) two propositions are contradictories if both cannot be true (or both cannot be false) at the same time | - |
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| contradistinction | (noun) a distinction drawn on the basis of contrast | - |
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| crossheading | (noun) a heading of a subsection printed within the body of the text | Synonyms: crosshead |
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| cyproheptadine | (noun) an antihistamine (trade name Periactin) used to treat some allergic reactions | Synonyms: Periactin |
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| epispadias | (noun) a congenital abnormality in males in which the urethra is on the upper surface of the penis | - |
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| eradication | (noun) the complete destruction of every trace of something | Synonyms: obliteration |
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| eradicator | (noun) someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects) | Synonyms: exterminator, terminator |
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| estradiol | (noun) the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancer | Synonyms: oestradiol |
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| extradition | (noun) the surrender of an accused or convicted person by one state or country to another (usually under the provisions of a statute or treaty) | - |
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| fading | (noun) weakening in force or intensity | Synonyms: attenuation |
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| fradicin | (noun) an antibiotic obtained from an actinomycete and used (as a sulphate under the trade name Neobiotic) as an intestinal antiseptic in surgery | Synonyms: Neobiotic, neomycin |
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| gladiator | (noun) (ancient Rome) a professional combatant or a captive who entertained the public by engaging in mortal combat | - |
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| (noun) a professional boxer | Synonyms: prizefighter |
| gladiola | (noun) any of numerous plants of the genus Gladiolus native chiefly to tropical and South Africa having sword-shaped leaves and one-sided spikes of brightly colored funnel-shaped flowers; widely cultivated | Synonyms: glad, gladiolus, sword lily |
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| gladiolus | (noun) the large central part of the breastbone | Synonyms: corpus sternum |
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| (noun) any of numerous plants of the genus Gladiolus native chiefly to tropical and South Africa having sword-shaped leaves and one-sided spikes of brightly colored funnel-shaped flowers; widely cultivated | Synonyms: glad, gladiola, sword lily |
| goading | (noun) a verbalization that encourages you to attempt something | Synonyms: goad, prod, prodding, spur, spurring, urging |
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| gradient | (noun) the property possessed by a line or surface that departs from the horizontal | Synonyms: slope |
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| (noun) a graded change in the magnitude of some physical quantity or dimension | - |
| grading | (noun) the act of arranging in a graduated series | Synonyms: scaling |
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| (noun) evaluation of performance by assigning a grade or score | Synonyms: marking, scoring |
| (noun) changing the ground level to a smooth horizontal or gently sloping surface | Synonyms: leveling |
| granadilla | (noun) the egg-shaped edible fruit of tropical American vines related to passionflowers | - |
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| (noun) tropical American passionflower yielding the large granadilla fruit | Synonyms: giant granadilla, Passiflora quadrangularis |
| (noun) Brazilian passionflower cultivated for its deep purple fruit | Synonyms: Passiflora edulis, purple granadillo |
| (noun) considered best for fruit | Synonyms: Passiflora ligularis, sweet granadilla |
| granadillo | (noun) West Indian tree yielding a fine grade of green ebony | Synonyms: Brya ebenus, granadilla tree |
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| grenadier | (noun) deep-sea fish with a large head and body and long tapering tail | Synonyms: rattail, rattail fish |
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| (noun) an infantryman equipped with grenades | Synonyms: grenade thrower |
| grenadine | (noun) thin syrup made from pomegranate juice; used in mixed drinks | - |
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| hadith | (noun) (Islam) the way of life prescribed as normative for Muslims on the basis of the teachings and practices of Muhammad and interpretations of the Koran | Synonyms: Sunna, Sunnah |
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| headiness | (noun) The characteristic of being intoxicating or stupefying. | - |
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| (noun) The characteristic of being exhilarating, tending to upset the mind or senses. | - |
| heading | (noun) a horizontal (or nearly horizontal) passageway in a mine | Synonyms: drift, gallery |
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| (noun) a line of text serving to indicate what the passage below it is about | Synonyms: head, header |
| (noun) the direction or path along which something moves or along which it lies | Synonyms: aim, bearing |
| horseradish | (noun) grated horseradish root | - |
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| (noun) coarse Eurasian plant cultivated for its thick white pungent root | Synonyms: Armoracia rusticana, horse radish, red cole |
| (noun) the root of the horseradish plant; it is grated or ground and used for seasoning | Synonyms: horseradish root |
| hypogonadism | (noun) incompetence of the gonads (especially in the male with low testosterone); results in deficient development of secondary sex characteristics and (in prepubertal males) a body with long legs and a short trunk | - |
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| hypospadias | (noun) an abnormal condition in males in which the urethra opens on the under surface of the penis | - |
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| irradiation | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: actinotherapy, radiation, radiation therapy, radiotherapy |
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| (noun) the apparent enlargement of a bright object when viewed against a dark background | - |
| (noun) (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus | - |
| (noun) (physiology) the spread of sensory neural impulses in the cortex | - |
| (noun) a column of light (as from a beacon) | Synonyms: beam, beam of light, light beam, ray, ray of light, shaft, shaft of light |
| (noun) the condition of being exposed to radiation | - |
| khadi | (noun) a coarse homespun cotton cloth made in India | Synonyms: khaddar |
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| lading | (noun) goods carried by a large vehicle | Synonyms: cargo, consignment, freight, load, loading, payload, shipment |
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| leading | (noun) thin strip of metal used to separate lines of type in printing | Synonyms: lead |
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| (noun) the activity of leading | Synonyms: leadership |
| lipreading | (noun) perceiving what a person is saying by observing the movements of the lips | - |
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| loading | (noun) the labor of putting a load of something on or in a vehicle or ship or container etc. | - |
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| (noun) goods carried by a large vehicle | Synonyms: cargo, consignment, freight, lading, load, payload, shipment |
| (noun) weight to be borne or conveyed | Synonyms: burden, load |
| (noun) a quantity that can be processed or transported at one time | Synonyms: load |
| (noun) the ratio of the gross weight of an airplane to some factor determining its lift | - |
| menadione | (noun) a synthetic chemical compound that is a form of vitamin K, it is an analog of 1,4-naphthoquinone with a methyl group in the 2-position | Synonyms: vitamin K3 |
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| microradian | (noun) a unit of angular distance equal to one thousandth of a milliradian | - |
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| milliradian | (noun) a unit of angular distance equal to one thousandth of a radian | - |
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| misleadingness | (noun) The quality of being deceptive or tending to mislead or create a false impression. | - |
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| misreading | (noun) misinterpretation caused by inaccurate reading | - |
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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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| muscadine | (noun) dull-purple grape of southern United States | Synonyms: bullace grape |
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| (noun) native grape of southeastern United States; origin of many cultivated varieties | Synonyms: Vitis rotundifolia |
| nadir | (noun) the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected | - |
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| (noun) an extreme state of adversity; the lowest point of anything | Synonyms: low-water mark |
| nomadism | (noun) The way of life of people who, having no fixed home, move around seasonally in search of food, water and grazing etc. | - |
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| oestradiol | (noun) the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancer | Synonyms: estradiol |
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| paladin | (noun) someone who fights for a cause | Synonyms: champion, fighter, hero |
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| palladium | (noun) a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry | Synonyms: atomic number 46, Pd |
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| paradiddle | (noun) the sound of a drum (especially a snare drum) beaten rapidly and continuously | Synonyms: drum roll, roll |
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| paradigm | (noun) a standard or typical example | Synonyms: epitome, image, prototype |
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| (noun) the generally accepted perspective of a particular discipline at a given time | - |
| (noun) the class of all items that can be substituted into the same position (or slot) in a grammatical sentence (are in paradigmatic relation with one another) | Synonyms: substitution class |
| (noun) systematic arrangement of all the inflected forms of a word | - |
| paradise | (noun) any place of complete bliss and delight and peace | Synonyms: Eden, heaven, nirvana, promised land, Shangri-la |
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| peccadillo | (noun) a petty misdeed | Synonyms: indiscretion |
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| phytonadione | (noun) a form of vitamin K, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituent | Synonyms: phylloquinone, vitamin K1 |
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| pleading | (noun) (law) a statement in legal and logical form stating something on behalf of a party to a legal proceeding | - |
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| qadi | (noun) an Islamic judge | - |
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| quesadilla | (noun) a tortilla that is filled with cheese and heated | - |
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| radial | (noun) pneumatic tire that has radial-ply casing | Synonyms: radial-ply tire, radial tire |
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| radian | (noun) the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees) | Synonyms: rad |
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| radiance | (noun) the quality of being bright and sending out rays of light | Synonyms: effulgence, radiancy, refulgence, refulgency, shine |
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| (noun) the amount of electromagnetic radiation leaving or arriving at a point on a surface | Synonyms: glow, glowing |
| (noun) an attractive combination of good health and happiness | - |
| radiancy | (noun) the quality of being bright and sending out rays of light | Synonyms: effulgence, radiance, refulgence, refulgency, shine |
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| radiation | (noun) the act of spreading outward from a central source | - |
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| (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: actinotherapy, irradiation, radiation therapy, radiotherapy |
| (noun) a radial arrangement of nerve fibers connecting different parts of the brain | - |
| (noun) the spread of a group of organisms into new habitats | - |
| (noun) energy that is radiated or transmitted in the form of rays or waves or particles | - |
| (noun) the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay | Synonyms: radioactivity |
| (noun) syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours | Synonyms: radiation sickness, radiation syndrome |
| radiator | (noun) a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan | - |
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| (noun) heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings | - |
| (noun) any object that radiates energy | - |
| radical | (noun) a character conveying the lexical meaning of a logogram | - |
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| (noun) (linguistics) the form of a word after all affixes are removed | Synonyms: base, root, root word, stem, theme |
| (noun) a person who has radical ideas or opinions | - |
| (noun) (mathematics) a quantity expressed as the root of another quantity | - |
| (noun) (chemistry) two or more atoms bound together as a single unit and forming part of a molecule | Synonyms: chemical group, group |
| (noun) an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule | Synonyms: free radical |
| radicalism | (noun) the political orientation of those who favor revolutionary change in government and society | - |
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| radicchio | (noun) prized variety of chicory having globose heads of red leaves | - |
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| radicle | (noun) (anatomy) a small structure resembling a rootlet (such as a fibril of a nerve) | - |
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| radiculitis | (noun) inflammation of the radicle of a nerve | - |
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| radio | (noun) a communication system based on broadcasting electromagnetic waves | Synonyms: wireless |
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| (noun) an electronic receiver that detects and demodulates and amplifies transmitted signals | Synonyms: radio receiver, radio set, receiving set, tuner, wireless |
| (noun) medium for communication | Synonyms: radiocommunication, wireless |
| radioactivity | (noun) the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay | Synonyms: radiation |
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| radiobiologist | (noun) a biologist who studies the effects of radiation on living organisms | - |
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| radiobiology | (noun) the branch of biology that studies the effects of radiation on living organisms | - |
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| radiocarbon | (noun) a radioactive isotope of carbon | Synonyms: carbon 14 |
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| radiochemist | (noun) a chemist who specializes in nuclear chemistry | Synonyms: nuclear chemist |
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| radiochemistry | (noun) the chemistry of radioactive substances | Synonyms: nuclear chemistry |
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| radiochlorine | (noun) a radioactive isotope of chlorine | - |
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| radiocommunication | (noun) medium for communication | Synonyms: radio, wireless |
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