| abbreviation | (noun) shortening something by omitting parts of it | - |
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| (noun) a shortened form of a word or phrase | - |
| abbreviator | (noun) one who shortens or abridges or condenses a written work | Synonyms: abridger |
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| affiliate | (noun) a subsidiary or subordinate organization that is affiliated with another organization | - |
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| (noun) a subordinate or subsidiary associate; a person who is affiliated with another or with an organization | - |
| affiliation | (noun) the act of becoming formally connected or joined | - |
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| (noun) a social or business relationship | Synonyms: association, tie-up, tie |
| alleviation | (noun) the act of reducing something unpleasant (as pain or annoyance) | Synonyms: easement, easing, relief |
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| (noun) the feeling that comes when something burdensome is removed or reduced | Synonyms: assuagement, relief |
| alleviator | (noun) remedy that alleviates pain without curing | Synonyms: alleviant, palliative |
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| (noun) a therapist who makes suffering more endurable | - |
| alluviation | (noun) the phenomenon of sediment or gravel accumulating | Synonyms: deposit, sedimentation |
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| annunciation | (noun) a formal public statement | Synonyms: announcement, declaration, proclamation |
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| annunciator | (noun) an indicator that announces which electrical circuit has been active (as on a telephone switchboard) | - |
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| appoggiatura | (noun) an embellishing note usually written in smaller size | Synonyms: acciaccatura, grace note |
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| appreciation | (noun) a favorable judgment | Synonyms: admiration |
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| (noun) an increase in price or value | - |
| (noun) understanding of the nature or meaning or quality or magnitude of something | Synonyms: grasp, hold |
| (noun) delicate discrimination (especially of esthetic values) | Synonyms: discernment, perceptiveness, taste |
| (noun) an expression of gratitude | - |
| appreciativeness | (noun) warm friendly feelings of gratitude | Synonyms: gratefulness, thankfulness |
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| appreciator | (noun) a person who is fully aware of something and understands it | - |
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| appropriateness | (noun) the quality of being specially suitable | - |
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| (noun) appropriate conduct; doing the right thing | Synonyms: rightness |
| appropriation | (noun) a deliberate act of acquisition of something, often without the permission of the owner | - |
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| (noun) incorporation by joining or uniting | Synonyms: annexation |
| (noun) money set aside (as by a legislature) for a specific purpose | - |
| appropriator | (noun) someone who takes for his or her own use (especially without permission) | - |
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| asphyxiation | (noun) killing by depriving of oxygen | Synonyms: suffocation |
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| (noun) the condition of being deprived of oxygen (as by having breathing stopped) | Synonyms: suffocation |
| asphyxiator | (noun) a manually operated device for extinguishing small fires | Synonyms: extinguisher, fire extinguisher |
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| associate | (noun) a degree granted by a two-year college on successful completion of the undergraduates course of studies | Synonyms: associate degree |
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| (noun) any event that usually accompanies or is closely connected with another | - |
| (noun) a person who joins with others in some activity or endeavor | - |
| (noun) a friend who is frequently in the company of another | Synonyms: companion, comrade, familiar, fellow |
| (noun) a person with subordinate membership in a society, institution, or commercial enterprise | - |
| associateship | (noun) the position of associate (as in an office or academy) | - |
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| association | (noun) the act of consorting with or joining with others | - |
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| (noun) the process of bringing ideas or events together in memory or imagination | Synonyms: connection, connexion |
| (noun) a formal organization of people or groups of people | - |
| (noun) (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species | - |
| (noun) (chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding | - |
| (noun) a relation resulting from interaction or dependence | - |
| (noun) a social or business relationship | Synonyms: affiliation, tie-up, tie |
| (noun) the state of being connected together as in memory or imagination | - |
| associationism | (noun) (psychology) a theory that association is the basic principle of mental activity | Synonyms: association theory |
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| aviation | (noun) travel via aircraft | Synonyms: air, air travel |
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| (noun) the art of operating aircraft | Synonyms: airmanship |
| (noun) the aggregation of a country's military aircraft | Synonyms: air power |
| (noun) the operation of aircraft to provide transportation | - |
| aviator | (noun) someone who operates an aircraft | Synonyms: aeronaut, flier, flyer |
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| aviatress | (noun) a woman aviator | Synonyms: airwoman, aviatrix |
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| aviatrix | (noun) a woman aviator | Synonyms: airwoman, aviatress |
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| beneficiation | (noun) crushing and separating ore into valuable substances or waste by any of a variety of techniques | Synonyms: mineral dressing, mineral extraction, mineral processing, ore dressing, ore processing |
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| bioremediation | (noun) the act of treating waste or pollutants by the use of microorganisms (as bacteria) that can break down the undesirable substances | - |
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| (noun) the branch of biotechnology that uses biological process to overcome environmental problems | - |
| brachiation | (noun) swinging by the arms from branch to branch | - |
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| calumniation | (noun) a false accusation of an offense or a malicious misrepresentation of someone's words or actions | Synonyms: calumny, defamation, hatchet job, obloquy, traducement |
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| ciliate | (noun) a protozoan with a microscopic appendage extending from the surface of the cell | Synonyms: ciliated protozoan, ciliophoran |
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| columniation | (noun) (architecture) the arrangement of columns (especially freestanding columns) in a structure | - |
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| commissariat | (noun) a stock or supply of foods | Synonyms: provender, provisions, viands, victuals |
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| conciliation | (noun) the act of placating and overcoming distrust and animosity | Synonyms: placation, propitiation |
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| (noun) any of various forms of mediation whereby disputes may be settled short of arbitration | - |
| (noun) the state of manifesting goodwill and cooperation after being reconciled | - |
| conciliator | (noun) someone who tries to bring peace | Synonyms: make-peace, pacifier, peacemaker, reconciler |
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| consubstantiation | (noun) the doctrine of the High Anglican Church that after the consecration of the Eucharist the substance of the body and blood of Christ coexists with the substance of the consecrated bread and wine | - |
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| covariation | (noun) (statistics) correlated variation | - |
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| craniate | (noun) animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium | Synonyms: vertebrate |
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| dedifferentiation | (noun) the loss of specialization in form or function | - |
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| defoliation | (noun) causing the leaves of trees and other plants to fall off (as by the use of chemicals) | - |
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| (noun) the loss of foliage | - |
| defoliator | (noun) an insect that strips the leaves from plants | - |
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| denunciation | (noun) a public act of denouncing | Synonyms: denouncement |
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| depreciation | (noun) a decrease in price or value | - |
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| (noun) a communication that belittles somebody or something | Synonyms: derogation, disparagement |
| (noun) decrease in value of an asset due to obsolescence or use | Synonyms: wear and tear |
| depreciator | (noun) one who disparages or belittles the worth of something | Synonyms: detractor, disparager, knocker |
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| despoliation | (noun) the act of stripping and taking by force | Synonyms: despoilation, despoilment, spoil, spoilation, spoliation |
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| dessiatine | (noun) a former Russian unit of area equal to 2.7 acres | - |
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| deviate | (noun) a person whose behavior deviates from what is acceptable especially in sexual behavior | Synonyms: degenerate, deviant, perv, perve, pervert |
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| deviation | (noun) deviate behavior | Synonyms: deviance |
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| (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deflexion, digression, divagation, diversion |
| (noun) the error of a compass due to local magnetic disturbances | - |
| (noun) the difference between an observed value and the expected value of a variable or function | - |
| (noun) a variation that deviates from the standard or norm | Synonyms: departure, difference, divergence |
| deviationism | (noun) ideological defection from the party line (especially from orthodox communism) | - |
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| deviationist | (noun) an ideological defector from the party line (especially from orthodox communism) | - |
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| diathermy | (noun) a method of physical therapy that involves generating local heat in body tissues by high-frequency electromagnetic currents | - |
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| diathesis | (noun) constitutional predisposition to a particular disease or abnormality | - |
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| diatom | (noun) microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica | - |
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| diatomite | (noun) a light soil consisting of siliceous diatom remains and often used as a filtering material | Synonyms: diatomaceous earth, kieselguhr |
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| diatribe | (noun) thunderous verbal attack | Synonyms: fulmination |
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| dibranchiate | (noun) cephalopods having two gills | Synonyms: dibranch, dibranchiate mollusk |
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| differentiation | (noun) the mathematical process of obtaining the derivative of a function | - |
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| (noun) a discrimination between things as different and distinct on the basis of their characteristics or attributes | Synonyms: distinction |
| (noun) (biology) the structural adaptation of some body part for a particular function | Synonyms: specialisation, specialization |
| differentiator | (noun) a person who (or that which) differentiates | Synonyms: discriminator |
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| disassociation | (noun) a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently | Synonyms: dissociation |
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| (noun) the state of being unconnected in memory or imagination | - |
| dissociation | (noun) the act of removing from association | - |
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| (noun) (chemistry) the temporary or reversible process in which a molecule or ion is broken down into smaller molecules or ions | - |
| (noun) a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently | Synonyms: disassociation |
| domiciliation | (noun) temporary living quarters | Synonyms: diggings, digs, lodgings, pad |
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| emaciation | (noun) extreme leanness (usually caused by starvation or disease) | Synonyms: boniness, bonyness, gauntness, maceration |
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| enunciation | (noun) the articulation of speech regarded from the point of view of its intelligibility to the audience | Synonyms: diction |
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| excoriation | (noun) severe censure | - |
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| (noun) an abraded area where the skin is torn or worn off | Synonyms: abrasion, scrape, scratch |
| excruciation | (noun) the infliction of extremely painful punishment or suffering | Synonyms: crucifixion |
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| (noun) a state of acute pain | Synonyms: agony, suffering |
| exfoliation | (noun) a thin flake of dead epidermis shed from the surface of the skin | Synonyms: scale, scurf |
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| (noun) the peeling off in flakes or scales of bark or dead skin | - |
| expatiation | (noun) a discussion (spoken or written) that enlarges on a topic or theme at length or in detail | - |
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| expatriate | (noun) a person who is voluntarily absent from home or country | Synonyms: exile, expat |
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| expatriation | (noun) the act of expelling a person from their native land | Synonyms: deportation, exile, transportation |
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| (noun) migration from a place (especially migration from your native country in order to settle in another) | Synonyms: emigration, out-migration |
| expiation | (noun) the act of atoning for sin or wrongdoing (especially appeasing a deity) | Synonyms: atonement, propitiation |
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| (noun) compensation for a wrong | Synonyms: atonement, satisfaction |
| exponentiation | (noun) the process of raising a quantity to some assigned power | Synonyms: involution |
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| expropriation | (noun) taking out of an owner's hands (especially taking property by public authority) | - |
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| fiat | (noun) a legally binding command or decision entered on the court record (as if issued by a court or judge) | Synonyms: decree, edict, order, rescript |
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| filiation | (noun) inherited properties shared with others of your bloodline | Synonyms: ancestry, derivation, lineage |
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| (noun) the kinship relation between an individual and the individual's progenitors | Synonyms: descent, line of descent, lineage |
| foliation | (noun) the production of foil by cutting or beating metal into thin leaves | - |
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| (noun) the work of coating glass with metal foil | - |
| (noun) (architecture) leaf-like architectural ornament | Synonyms: foliage |
| (noun) (geology) the arrangement of leaflike layers in a rock | - |
| (noun) (botany) the process of forming leaves | Synonyms: leafing |
| geriatrician | (noun) a specialist in gerontology | Synonyms: gerontologist |
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| geriatrics | (noun) the branch of medical science that deals with diseases and problems specific to old people | Synonyms: gerontology |
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| glaciation | (noun) the process of covering the earth with glaciers or masses of ice | - |
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| (noun) the condition of being covered with glaciers or masses of ice; the result of glacial action | - |
| 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 |
| goliath | (noun) someone that is abnormally large and powerful | Synonyms: behemoth, colossus, giant, monster |
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| hellgrammiate | (noun) large brown aquatic larva of the dobsonfly; used as fishing bait | Synonyms: dobson |
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| herniation | (noun) rupture in smooth muscle tissue through which a bodily structure protrudes | Synonyms: hernia |
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| hiatus | (noun) a natural opening or perforation through a bone or a membranous structure | Synonyms: foramen |
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| (noun) a missing piece (as a gap in a manuscript) | - |
| (noun) an interruption in the intensity or amount of something | Synonyms: abatement, reprieve, respite, suspension |
| humiliation | (noun) depriving one of self-esteem | Synonyms: abasement |
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| (noun) an instance in which you are caused to lose your prestige or self-respect | Synonyms: mortification |
| (noun) strong feelings of embarrassment | Synonyms: chagrin, mortification |
| (noun) state of disgrace or loss of self-respect | - |
| immediateness | (noun) the quickness of action or occurrence | Synonyms: immediacy, instancy, instantaneousness |
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| (noun) lack of an intervening or mediating agency | Synonyms: immediacy |
| inappropriateness | (noun) the quality of being not particularly suitable or befitting | Synonyms: unworthiness |
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| (noun) inappropriate conduct | Synonyms: wrongness |
| inebriate | (noun) a chronic drinker | Synonyms: drunk, drunkard, rummy, sot, wino |
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| inebriation | (noun) a temporary state resulting from excessive consumption of alcohol | Synonyms: drunkenness, inebriety, insobriety, intoxication, tipsiness |
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| (noun) habitual intoxication; prolonged and excessive intake of alcoholic drinks leading to a breakdown in health and an addiction to alcohol such that abrupt deprivation leads to severe withdrawal symptoms | Synonyms: alcohol addiction, alcoholism, drunkenness |
| infuriation | (noun) a feeling of intense anger and impatience | Synonyms: enragement |
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| ingratiation | (noun) the act of gaining acceptance or affection for yourself by persuasive and subtle blandishments | Synonyms: insinuation |
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| initiate | (noun) people who have been introduced to the mysteries of some field or activity | Synonyms: enlightened |
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| (noun) someone who has been admitted to membership in a scholarly field | Synonyms: learned person, pundit, savant |
| (noun) someone new to a field or activity | Synonyms: beginner, novice, tiro, tyro |
| initiation | (noun) the act of starting something for the first time; introducing something new | Synonyms: creation, foundation, founding, innovation, instauration, institution, introduction, origination |
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| (noun) an act that sets in motion some course of events | Synonyms: induction, trigger |
| (noun) wisdom as evidenced by the possession of knowledge | Synonyms: knowledgeability, knowledgeableness |
| (noun) a formal entry into an organization or position or office | Synonyms: induction, installation |
| initiative | (noun) the first of a series of actions | Synonyms: first step, opening, opening move |
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| (noun) readiness to embark on bold new ventures | Synonyms: enterprise, enterprisingness, go-ahead |
| initiator | (noun) a person who initiates a course of action | Synonyms: instigator |
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| instantiation | (noun) a representation of an idea in the form of an instance of it | - |
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| intermediate | (noun) a substance formed during a chemical process before the desired product is obtained | - |
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| intermediation | (noun) the act of intervening for the purpose of bringing about a settlement | Synonyms: mediation |
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| intermediator | (noun) a negotiator who acts as a link between parties | Synonyms: go-between, intercessor, intermediary, mediator |
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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 | - |
| lariat | (noun) a long noosed rope used to catch animals | Synonyms: lasso, reata, riata |
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