| abactinal | (adjective) (of radiate animals) located on the surface or end opposite to that on which the mouth is situated | - |
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| abarticulation | (noun) dislocation of a joint | - |
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| abatic | (adjective) of or relating to abasia (inability to walk) | Synonyms: abasic |
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| abatis | (noun) a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy | Synonyms: abattis |
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| abattis | (noun) a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy | Synonyms: abatis |
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| abbatial | (adjective) of or having to do with or belonging to an abbey or abbot, or abbess | - |
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| abbreviation | (noun) shortening something by omitting parts of it | - |
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| (noun) a shortened form of a word or phrase | - |
| abdication | (noun) a formal resignation and renunciation of powers | Synonyms: stepping down |
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| (noun) the act of abdicating | Synonyms: stepping down |
| abducting | (adjective) especially of muscles; drawing away from the midline of the body or from an adjacent part | Synonyms: abducent |
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| abduction | (noun) the criminal act of capturing and carrying away by force a family member; if a man's wife is abducted it is a crime against the family relationship and against the wife | - |
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| (noun) (physiology) moving of a body part away from the central axis of the body | - |
| aberration | (noun) an optical phenomenon resulting from the failure of a lens or mirror to produce a good image | Synonyms: distortion, optical aberration |
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| (noun) a disorder in one's mental state | - |
| (noun) a state or condition markedly different from the norm | Synonyms: aberrance, aberrancy, deviance |
| abiogenetic | (adjective) originating by abiogenesis | - |
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| abjection | (noun) a low or downcast state | Synonyms: abasement, degradation |
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| abjuration | (noun) a disavowal or taking back of a previous assertion | Synonyms: recantation, retraction |
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| ablactation | (noun) the act of substituting other food for the mother's milk in the diet of a child or young mammal | Synonyms: weaning |
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| (noun) the cessation of lactation | - |
| ablation | (noun) surgical removal of a body part or tissue | Synonyms: cutting out, excision, extirpation |
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| (noun) the erosive process that reduces the size of glaciers | - |
| ablative | (adjective) relating to the ablative case | - |
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| (adjective) tending to ablate; i.e. to be removed or vaporized at very high temperature | - |
| (noun) the case indicating the agent in passive sentences or the instrument or manner or place of the action described by the verb | Synonyms: ablative case |
| ablution | (noun) the ritual washing of a priest's hands or of sacred vessels | - |
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| ablutionary | (adjective) cleansing the body by washing; especially ritual washing of e.g. hands | Synonyms: cleansing |
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| abnegation | (noun) renunciation of your own interests in favor of the interests of others | Synonyms: denial, self-abnegation, self-denial, self-renunciation |
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| (noun) the denial and rejection of a doctrine or belief | - |
| abolition | (noun) the act of abolishing a system or practice or institution (especially abolishing slavery) | Synonyms: abolishment |
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| abolitionary | (adjective) relating to or favoring abolition, especially abolition of slavery | - |
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| abolitionism | (noun) the doctrine that calls for the abolition of slavery | - |
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| abolitionist | (noun) a reformer who favors abolishing slavery | Synonyms: emancipationist |
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| abomination | (noun) an action that is vicious or vile; an action that arouses disgust or abhorrence | - |
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| (noun) hate coupled with disgust | Synonyms: abhorrence, detestation, execration, loathing, odium |
| (noun) a person who is loathsome or disgusting | - |
| aborticide | (noun) the act of destroying a fetus | Synonyms: feticide |
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| (noun) a drug (or other chemical agent) that causes abortion | Synonyms: abortifacient, abortion-inducing drug |
| abortifacient | (adjective) causing abortion | - |
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| (noun) a drug (or other chemical agent) that causes abortion | Synonyms: aborticide, abortion-inducing drug |
| abortion | (noun) termination of pregnancy | - |
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| (noun) failure of a plan | Synonyms: miscarriage |
| abortionist | (noun) a person (who should be a doctor) who terminates pregnancies | - |
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| abortive | (adjective) failing to accomplish an intended result | Synonyms: stillborn, unsuccessful |
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| abortively | (adverb) in an unfruitful manner | - |
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| abreaction | (noun) (psychoanalysis) purging of emotional tensions | Synonyms: catharsis, katharsis |
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| abrogation | (noun) the act of abrogating; an official or legal cancellation | Synonyms: annulment, repeal |
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| abruption | (noun) an instance of sudden interruption | Synonyms: breaking off |
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| absolution | (noun) the act of absolving or remitting; formal redemption as pronounced by a priest in the sacrament of penance | Synonyms: remission, remission of sin, remittal |
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| (noun) the condition of being formally forgiven by a priest in the sacrament of penance | - |
| absolutisation | (noun) the process of rendering something absolute or converting it into an absolute. | Synonyms: absolutization |
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| absolutism | (noun) the doctrine of an absolute being, often related to idealism in philosophy. | - |
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| (noun) an ideological belief in the complete and unrestricted power of government. | Synonyms: totalism, totalitarianism |
| (noun) a form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.) | Synonyms: authoritarianism, Caesarism, despotism, dictatorship, monocracy, one-man rule, shogunate, Stalinism, totalitarianism, tyranny |
| (noun) dominance through threat of punishment and violence | Synonyms: despotism, tyranny |
| absolutist | (adjective) pertaining to the principle of totalitarianism | Synonyms: absolutistic |
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| (noun) one who advocates absolutism | - |
| absolutistic | (adjective) pertaining to the principle of totalitarianism | Synonyms: absolutist |
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| absolutization | (noun) the process of rendering something absolute or converting it into an absolute. | Synonyms: absolutisation |
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| absorption | (noun) the mental state of being preoccupied by something | Synonyms: engrossment, preoccupancy, preoccupation |
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| (noun) complete attention; intense mental effort | Synonyms: concentration, engrossment, immersion |
| (noun) (chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid | Synonyms: soaking up |
| (noun) the process of absorbing nutrients into the body after digestion | Synonyms: assimilation |
| (noun) (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium | - |
| (noun) the social process of absorbing one cultural group into harmony with another | Synonyms: assimilation |
| absorptive | (adjective) having power or capacity or tendency to absorb or soak up something (liquids or energy etc.) | Synonyms: absorbent |
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| absorptivity | (noun) (physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body | Synonyms: absorption factor |
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| abstention | (noun) the trait of abstaining (especially from alcohol) | Synonyms: abstinence |
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| abstentious | (adjective) self-restraining; not indulging an appetite especially for food or drink | Synonyms: abstinent |
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| abstinence | (noun) act or practice of refraining from indulging an appetite | - |
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| (noun) the trait of abstaining (especially from alcohol) | Synonyms: abstention |
| abstinent | (adjective) self-restraining; not indulging an appetite especially for food or drink | Synonyms: abstentious |
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| (noun) a person who refrains from drinking intoxicating beverages | Synonyms: abstainer, nondrinker |
| abstraction | (noun) a general concept formed by extracting common features from specific examples | Synonyms: abstract entity |
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| (noun) the act of withdrawing or removing something | - |
| (noun) an abstract painting | - |
| (noun) a concept or idea not associated with any specific instance | Synonyms: abstract |
| (noun) preoccupation with something to the exclusion of all else | Synonyms: abstractedness |
| (noun) the process of formulating general concepts by abstracting common properties of instances | Synonyms: generalisation, generalization |
| abstractionism | (noun) an abstract genre of art; artistic content depends on internal form rather than pictorial representation | Synonyms: abstract art |
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| (noun) a representation having no reference to concrete objects or specific examples | Synonyms: unrealism |
| abstractionist | (adjective) not representing or imitating external reality or the objects of nature | Synonyms: abstract, nonfigurative, nonobjective |
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| (noun) a painter of abstract pictures | Synonyms: abstract artist |
| abstractive | (adjective) of an abstracting nature or having the power of abstracting | - |
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| acanthotic | (adjective) of or relating to or having acanthosis | - |
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| acapnotic | (adjective) relating to or demonstrating acapnia | Synonyms: acapnial, acapnic |
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| acatalectic | (adjective) (verse) metrically complete; especially having the full number of syllables in the final metrical foot | - |
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| (noun) (prosody) a line of verse that has the full number of syllables | - |
| acceleration | (noun) the act of accelerating; increasing the speed | Synonyms: quickening, speedup |
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| (noun) an increase in rate of change | - |
| (noun) (physics) a rate of increase of velocity | - |
| accelerative | (adjective) tending to increase velocity | Synonyms: acceleratory |
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| accenting | (noun) the act of giving special importance or significance to something | Synonyms: accentuation, emphasizing |
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| accentuation | (noun) the act of giving special importance or significance to something | Synonyms: accenting, emphasizing |
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| (noun) the use or application of an accent; the relative prominence of syllables in a phrase or utterance | - |
| acceptation | (noun) the act of accepting with approval; favorable reception | Synonyms: acceptance, adoption, espousal |
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| (noun) the accepted meaning of a word | Synonyms: word meaning, word sense |
| (noun) acceptance as true or valid | - |
| accepting | (adjective) tolerating without protest | - |
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| acceptive | (adjective) inclined to accept rather than reject | - |
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| (adjective) accepting willingly | Synonyms: acceptant |
| acclamation | (noun) enthusiastic approval | Synonyms: acclaim, eclat, plaudit, plaudits |
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| acclimation | (noun) adaptation to a new climate (a new temperature or altitude or environment) | Synonyms: acclimatisation, acclimatization |
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| acclimatisation | (noun) adaptation to a new climate (a new temperature or altitude or environment) | Synonyms: acclimation, acclimatization |
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| acclimatise | (verb) get used to a certain climate | Synonyms: acclimate, acclimatize |
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| acclimatization | (noun) adaptation to a new climate (a new temperature or altitude or environment) | Synonyms: acclimation, acclimatisation |
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| acclimatize | (verb) get used to a certain climate | Synonyms: acclimate, acclimatise |
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| accommodating | (adjective) helpful in bringing about a harmonious adaptation | Synonyms: accommodative |
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| (adjective) obliging; willing to do favors | - |
| accommodatingly | (adverb) in accommodation | Synonyms: obligingly |
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| accommodation | (noun) the act of providing something (lodging or seat or food) to meet a need | - |
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| (noun) (physiology) the automatic adjustment in focal length of the natural lens of the eye | - |
| (noun) living quarters provided for public convenience | - |
| (noun) in the theories of Jean Piaget: the modification of internal representations in order to accommodate a changing knowledge of reality | - |
| (noun) a settlement of differences | - |
| (noun) making or becoming suitable; adjusting to circumstances | Synonyms: adjustment, fitting |
| accommodational | (adjective) of or relating to the accommodation of the lens of the eye | - |
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| accommodative | (adjective) helpful in bringing about a harmonious adaptation | Synonyms: accommodating |
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| (adjective) tending to reconcile or accommodate; bringing into harmony | Synonyms: reconciling |
| (adjective) willing to adjust to differences in order to obtain agreement | Synonyms: cooperative |
| accounting | (noun) the occupation of maintaining and auditing records and preparing financial reports for a business | Synonyms: accountancy |
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| (noun) a system that provides quantitative information about finances | - |
| (noun) a convincing explanation that reveals basic causes | - |
| (noun) a statement of recent transactions and the resulting balance | Synonyms: account, account statement |
| (noun) a bookkeeper's chronological list of related debits and credits of a business; forms part of a ledger of accounts | Synonyms: accounting system, method of accounting |
| accreditation | (noun) the act of granting credit or recognition (especially with respect to an educational institution that maintains suitable standards) | - |
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| accretion | (noun) (law) an increase in a beneficiary's share in an estate (as when a co-beneficiary dies or fails to meet some condition or rejects the inheritance) | - |
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| (noun) an increase by natural growth or addition | Synonyms: accumulation |
| (noun) (geology) an increase in land resulting from alluvial deposits or waterborne sediment | - |
| (noun) (biology) growth by addition as by the adhesion of parts or particles | - |
| (noun) (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases | - |
| (noun) something contributing to growth or increase | - |
| accretionary | (adjective) marked or produced by accretion | - |
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| accretive | (adjective) growing by accretion | - |
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| acculturation | (noun) the adoption of the behavior patterns of the surrounding culture | Synonyms: enculturation, socialisation, socialization |
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| (noun) all the knowledge and values shared by a society | Synonyms: culture |
| (noun) the process of assimilating new ideas into an existing cognitive structure | Synonyms: assimilation |
| acculturational | (adjective) of or relating to acculturation | Synonyms: acculturative |
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| acculturative | (adjective) of or relating to acculturation | Synonyms: acculturational |
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| accumulation | (noun) the act of accumulating | Synonyms: accrual, accruement |
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| (noun) several things grouped together or considered as a whole | Synonyms: aggregation, assemblage, collection |
| (noun) (finance) profits that are not paid out as dividends but are added to the capital base of the corporation | - |
| (noun) an increase by natural growth or addition | Synonyms: accretion |
| accumulative | (adjective) marked by acquiring or amassing | - |
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| (adjective) increasing by successive addition | Synonyms: cumulative |
| accusation | (noun) a formal charge of wrongdoing brought against a person; the act of imputing blame or guilt | Synonyms: accusal |
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| (noun) an assertion that someone is guilty of a fault or offence | Synonyms: charge |
| accusative | (adjective) serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes | Synonyms: objective |
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| (adjective) containing or expressing accusation | Synonyms: accusatory, accusing, accusive |
| (noun) the case of nouns serving as the direct object of a verb | Synonyms: accusative case, objective case |
| acetic | (adjective) relating to or containing acetic acid | - |
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| acetify | (verb) turn acidic | Synonyms: acidify |
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| (verb) make sour or more sour | Synonyms: acidify, acidulate, sour |
| acetin | (noun) any of three liquid acetates that are formed when acetic acid and glycerin are heated together | - |
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| acetophenetidin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetphenetidin, phenacetin |
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| acetphenetidin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetophenetidin, phenacetin |
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| acetylation | (noun) the process of introducing an acetyl group into a compound | - |
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| achondritic | (adjective) not having a granular structure | - |
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| (adjective) of or related to an achondrite | - |
| achondroplastic | (adjective) of or relating to achondroplasia | - |
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| achromatic | (adjective) having no hue | Synonyms: neutral |
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| achromaticity | (noun) the visual property of being without chromatic color | Synonyms: achromatism, colorlessness, colourlessness |
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| achromatin | (noun) the part of a cell nucleus that is relatively uncolored by stains or dyes | - |
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| achromatinic | (adjective) (of substance of a cell nucleus) not readily colored by stains | - |
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| achromatise | (verb) remove color from | Synonyms: achromatize |
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| achromatism | (noun) the visual property of being without chromatic color | Synonyms: achromaticity, colorlessness, colourlessness |
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| achromatize | (verb) remove color from | Synonyms: achromatise |
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| acidification | (noun) the process of becoming acid or being converted into an acid | - |
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