| auriscope | (noun) medical instrument consisting of a magnifying lens and light; used for examining the external ear (the auditory meatus and especially the tympanic membrane) | Synonyms: auroscope, otoscope |
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| biscuit | (noun) small round bread leavened with baking-powder or soda | - |
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| (noun) any of various small flat sweet cakes | Synonyms: cookie, cooky |
| blastodisc | (noun) a layer of cells on the inside of the blastula | Synonyms: blastoderm, germinal area, germinal disc |
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| cisco | (noun) important food fish of cold deep lakes of North America | Synonyms: Coregonus artedi, lake herring |
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| (noun) cold-water fish caught in Lake Superior and northward | Synonyms: lake herring |
| concupiscence | (noun) a desire for sexual intimacy | Synonyms: eros, physical attraction, sexual desire |
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| confiscation | (noun) seizure by the government | Synonyms: arrogation |
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| dehiscence | (noun) (biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound | - |
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| disc | (noun) a flat circular plate | Synonyms: disk |
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| (noun) sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove | Synonyms: disk, phonograph record, phonograph recording, platter, record |
| (noun) (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored | Synonyms: disk, magnetic disc, magnetic disk |
| (noun) something with a round shape resembling a flat circular plate | Synonyms: disk, saucer |
| discant | (noun) a decorative musical accompaniment (often improvised) added above a basic melody | Synonyms: descant |
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| discard | (noun) getting rid of something that is regarded as useless or undesirable | Synonyms: throwing away |
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| (noun) (cards) the act of throwing out a useless card or of failing to follow suit | - |
| (noun) anything that is cast aside or discarded | - |
| disceptation | (noun) a contentious speech act; a dispute where there is strong disagreement | Synonyms: arguing, argument, contention, contestation, controversy, disputation, tilt |
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| discernability | (noun) distinctness that makes perception easy | Synonyms: legibility |
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| discernment | (noun) the trait of judging wisely and objectively | Synonyms: discretion |
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| (noun) the mental ability to understand and discriminate between relations | Synonyms: judgement, judgment, sagaciousness, sagacity |
| (noun) the cognitive condition of someone who understands | Synonyms: apprehension, savvy, understanding |
| (noun) perception of that which is obscure | Synonyms: perceptiveness |
| (noun) delicate discrimination (especially of esthetic values) | Synonyms: appreciation, perceptiveness, taste |
| discharge | (noun) the act of discharging a gun | Synonyms: firing, firing off |
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| (noun) the termination of someone's employment (leaving them free to depart) | Synonyms: dismissal, dismission, firing, liberation, release, sack, sacking |
| (noun) a formal written statement of relinquishment | Synonyms: release, waiver |
| (noun) the act of venting | Synonyms: venting |
| (noun) the sudden giving off of energy | - |
| (noun) the pouring forth of a fluid | Synonyms: outpouring, run |
| (noun) electrical conduction through a gas in an applied electric field | Synonyms: arc, electric arc, electric discharge, spark |
| (noun) any of several bodily processes by which substances go out of the body | Synonyms: emission, expelling |
| (noun) a substance that is emitted or released | Synonyms: emission |
| discina | (noun) any fungus of the genus Discina | - |
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| disciple | (noun) someone who believes and helps to spread the doctrine of another | Synonyms: adherent |
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| discipleship | (noun) the position of disciple | - |
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| disciplinarian | (noun) someone who demands exact conformity to rules and forms | Synonyms: martinet, moralist |
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| discipline | (noun) training to improve strength or self-control | - |
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| (noun) the act of disciplining | Synonyms: correction |
| (noun) the trait of being well behaved | - |
| (noun) a branch of knowledge | Synonyms: bailiwick, field, field of study, study, subject, subject area, subject field |
| (noun) a system of rules of conduct or method of practice | - |
| disclaimer | (noun) (law) a voluntary repudiation of a person's legal claim to something | - |
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| (noun) denial of any connection with or knowledge of | Synonyms: disavowal |
| disclosure | (noun) the speech act of making something evident | Synonyms: revealing, revelation |
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| disco | (noun) a public dance hall for dancing to recorded popular music | Synonyms: discotheque |
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| (noun) popular dance music (especially in the late 1970s); melodic with a regular bass beat; intended mainly for dancing at discotheques | Synonyms: disco music |
| discography | (noun) a descriptive catalog of musical recordings | - |
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| discoloration | (noun) the act of changing the natural color of something by making it duller or dingier or unnatural or faded | Synonyms: discolouration |
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| (noun) a soiled or discolored appearance | Synonyms: discolouration, stain |
| discolouration | (noun) the act of changing the natural color of something by making it duller or dingier or unnatural or faded | Synonyms: discoloration |
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| (noun) a soiled or discolored appearance | Synonyms: discoloration, stain |
| discombobulation | (noun) a feeling of embarrassment that leaves you confused | Synonyms: confusion |
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| discomfited | (noun) people who are defeated | Synonyms: defeated |
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| discomfiture | (noun) anxious embarrassment | Synonyms: discomposure, disconcertion, disconcertment |
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| discomfort | (noun) an uncomfortable feeling of mental painfulness or distress | Synonyms: irritation, soreness |
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| (noun) the state of being tense and feeling pain | Synonyms: uncomfortableness |
| discomposure | (noun) a temperament that is perturbed and lacking in composure | - |
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| (noun) anxious embarrassment | Synonyms: discomfiture, disconcertion, disconcertment |
| discomycete | (noun) any fungus that is a member of the subclass Discomycetes | Synonyms: cup fungus |
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| disconcertion | (noun) anxious embarrassment | Synonyms: discomfiture, discomposure, disconcertment |
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| disconcertment | (noun) anxious embarrassment | Synonyms: discomfiture, discomposure, disconcertion |
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| disconnect | (noun) an unbridgeable disparity (as from a failure of understanding) | Synonyms: disconnection, gulf |
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| disconnectedness | (noun) state of being disconnected | Synonyms: disconnection, disjunction, disjuncture |
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| disconnection | (noun) the act of breaking a connection | Synonyms: disjunction |
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| (noun) an unbridgeable disparity (as from a failure of understanding) | Synonyms: disconnect, gulf |
| (noun) state of being disconnected | Synonyms: disconnectedness, disjunction, disjuncture |
| disconsolateness | (noun) feeling downcast and disheartened and hopeless | Synonyms: despondence, despondency, heartsickness |
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| discontent | (noun) a longing for something better than the present situation | Synonyms: discontentedness, discontentment |
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| discontentedness | (noun) a longing for something better than the present situation | Synonyms: discontent, discontentment |
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| discontentment | (noun) a longing for something better than the present situation | Synonyms: discontent, discontentedness |
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| discontinuance | (noun) the act of discontinuing or breaking off; an interruption (temporary or permanent) | Synonyms: discontinuation |
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| discontinuation | (noun) the act of discontinuing or breaking off; an interruption (temporary or permanent) | Synonyms: discontinuance |
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| discontinuity | (noun) lack of connection or continuity | - |
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| discord | (noun) strife resulting from a lack of agreement | Synonyms: discordance |
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| (noun) a harsh mixture of sounds | Synonyms: discordance |
| (noun) disagreement among those expected to cooperate | Synonyms: dissension |
| (noun) lack of agreement or harmony | Synonyms: strife |
| discordance | (noun) strife resulting from a lack of agreement | Synonyms: discord |
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| (noun) a harsh mixture of sounds | Synonyms: discord |
| discotheque | (noun) a public dance hall for dancing to recorded popular music | Synonyms: disco |
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| discount | (noun) the act of reducing the selling price of merchandise | Synonyms: deduction, price reduction |
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| (noun) an amount or percentage deducted | Synonyms: deduction |
| (noun) interest on an annual basis deducted in advance on a loan | Synonyms: bank discount, discount rate |
| (noun) a refund of some fraction of the amount paid | Synonyms: rebate |
| discounter | (noun) a sales outlet offering goods at a discounted price | Synonyms: discount house, discount store, wholesale house |
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| discouragement | (noun) the act of discouraging | - |
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| (noun) the expression of opposition and disapproval | - |
| (noun) the feeling of despair in the face of obstacles | Synonyms: disheartenment, dismay |
| discourse | (noun) an extended communication (often interactive) dealing with some particular topic | Synonyms: discussion, treatment |
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| (noun) extended verbal expression in speech or writing | - |
| (noun) an address of a religious nature (usually delivered during a church service) | Synonyms: preaching, sermon |
| discourtesy | (noun) a lack of politeness; a failure to show regard for others; wounding the feelings of others | Synonyms: offence, offense, offensive activity |
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| (noun) a manner that is rude and insulting | Synonyms: rudeness |
| (noun) an expression of lack of respect | Synonyms: disrespect |
| discoverer | (noun) someone who is the first to observe something | Synonyms: finder, spotter |
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| (noun) someone who is the first to think of or make something | Synonyms: artificer, inventor |
| discovery | (noun) the act of discovering something | Synonyms: find, uncovering |
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| (noun) a productive insight | Synonyms: breakthrough, find |
| (noun) something that is discovered | - |
| (noun) (law) compulsory pretrial disclosure of documents relevant to a case; enables one side in a litigation to elicit information from the other side concerning the facts in the case | - |
| discredit | (noun) the state of being held in low esteem | Synonyms: disrepute |
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| discreetness | (noun) subtly skillful handling of a situation | Synonyms: delicacy, diplomacy, finesse |
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| (noun) knowing how to avoid embarrassment or distress | Synonyms: circumspection, discretion, prudence |
| discrepancy | (noun) a difference between conflicting facts or claims or opinions | Synonyms: disagreement, divergence, variance |
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| (noun) an event that departs from expectations | Synonyms: variance, variant |
| discreteness | (noun) the state of being several and distinct | Synonyms: distinctness, separateness, severalty |
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| discretion | (noun) the trait of judging wisely and objectively | Synonyms: discernment |
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| (noun) the power of making free choices unconstrained by external agencies | Synonyms: free will |
| (noun) knowing how to avoid embarrassment or distress | Synonyms: circumspection, discreetness, prudence |
| (noun) refined taste; tact | Synonyms: delicacy |
| (noun) freedom to act or judge on one's own | - |
| discrimination | (noun) unfair treatment of a person or group on the basis of prejudice | Synonyms: favoritism, favouritism |
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| (noun) the cognitive process whereby two or more stimuli are distinguished | Synonyms: secernment |
| discriminator | (noun) a person who (or that which) differentiates | Synonyms: differentiator |
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| discursiveness | (noun) the quality of being discursive | - |
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| discus | (noun) a disk used in throwing competitions | Synonyms: saucer |
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| (noun) an athletic competition in which a disk-shaped object is thrown as far as possible | - |
| discussant | (noun) a participant in a formal discussion | - |
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| discussion | (noun) an exchange of views on some topic | Synonyms: give-and-take, word |
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| (noun) an extended communication (often interactive) dealing with some particular topic | Synonyms: discourse, treatment |
| episcia | (noun) any plant of the genus Episcia; usually creeping and stoloniferous and of cascading habit; grown for their colorful foliage and flowers | - |
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| episcleritis | (noun) inflammation of the sclera of the eye | - |
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| episcopacy | (noun) the collective body of bishops | Synonyms: episcopate |
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| episcopate | (noun) the office and dignity of a bishop | Synonyms: bishopry |
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| (noun) the collective body of bishops | Synonyms: episcopacy |
| (noun) the territorial jurisdiction of a bishop | Synonyms: bishopric, diocese |
| (noun) the term of office of a bishop | - |
| evisceration | (noun) surgical removal of an organ (or the contents of an organ) from a patient | - |
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| (noun) the act of removing the bowels or viscera; the act of cutting so as to cause the viscera to protrude | Synonyms: disembowelment |
| (noun) altering something (as a legislative act or a statement) in such a manner as to reduce its value | - |
| fisc | (noun) a state treasury or exchequer or a royal treasury; originally the public treasury of Rome or the emperor's private purse | - |
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| haschisch | (noun) purified resinous extract of the hemp plant; used as a hallucinogen | Synonyms: hash, hasheesh, hashish |
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| hibiscus | (noun) any plant of the genus Hibiscus | - |
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| indiscernibility | (noun) The state or characteristic of being indiscernible; inability to be observed. | - |
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| indiscipline | (noun) the trait of lacking discipline | Synonyms: undiscipline |
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| indiscreetness | (noun) lacking good judgment | Synonyms: injudiciousness |
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| indiscretion | (noun) a petty misdeed | Synonyms: peccadillo |
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| (noun) the trait of being injudicious | Synonyms: injudiciousness |
| ischaemia | (noun) local anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolism | Synonyms: ischemia |
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| ischemia | (noun) local anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolism | Synonyms: ischaemia |
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| ischium | (noun) one of the three sections of the hipbone; situated below the ilium | Synonyms: ischial bone, os ischii |
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| lemniscate | (noun) any of several plane algebraic curves in the shape of a figure eight | - |
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| lemniscus | (noun) a bundle of sensory nerve fibers going to the thalamus | Synonyms: fillet |
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| meniscectomy | (noun) surgical removal of the meniscus of the knee | - |
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| meniscus | (noun) (physics) the curved upper surface of a nonturbulent liquid in a vertical tube | - |
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| (noun) (optics) a lens that is concave on one side and convex on the other | - |
| (noun) (anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint | Synonyms: semilunar cartilage |
| miscalculation | (noun) a mistake in calculating | Synonyms: misestimation, misreckoning |
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| miscarriage | (noun) a natural loss of the products of conception | Synonyms: spontaneous abortion, stillbirth |
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| (noun) failure of a plan | Synonyms: abortion |
| miscegenation | (noun) reproduction by parents of different races (especially by white and non-white persons) | Synonyms: crossbreeding, interbreeding |
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| miscellanea | (noun) a collection containing a variety of sorts of things | Synonyms: assortment, miscellany, mixed bag, mixture, motley, potpourri, salmagundi, smorgasbord, variety |
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| miscellany | (noun) an anthology of short literary pieces and poems and ballads etc. | Synonyms: florilegium, garland |
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| (noun) a collection containing a variety of sorts of things | Synonyms: assortment, miscellanea, mixed bag, mixture, motley, potpourri, salmagundi, smorgasbord, variety |
| mischance | (noun) an instance of misfortune | Synonyms: misadventure, mishap |
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| (noun) an unpredictable outcome that is unfortunate | Synonyms: bad luck, mishap |
| mischief | (noun) reckless or malicious behavior that causes discomfort or annoyance in others | Synonyms: devilment, devilry, deviltry, mischief-making, mischievousness, rascality, roguery, roguishness, shenanigan |
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| (noun) the quality or nature of being harmful or evil | Synonyms: balefulness, maleficence |
| mischievousness | (noun) reckless or malicious behavior that causes discomfort or annoyance in others | Synonyms: devilment, devilry, deviltry, mischief-making, mischief, rascality, roguery, roguishness, shenanigan |
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| (noun) an attribute of mischievous children | Synonyms: badness, naughtiness |
| (noun) the trait of behaving like an imp | Synonyms: impishness, puckishness, whimsicality |
| misconception | (noun) an incorrect conception | - |
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| misconduct | (noun) activity that transgresses moral or civil law | Synonyms: actus reus, wrongdoing, wrongful conduct |
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| (noun) bad or dishonest management by persons supposed to act on another's behalf | - |
| misconstrual | (noun) a kind of misinterpretation resulting from putting a wrong construction on words or actions (often deliberately) | Synonyms: misconstruction |
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| misconstruction | (noun) an ungrammatical constituent | - |
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| (noun) a kind of misinterpretation resulting from putting a wrong construction on words or actions (often deliberately) | Synonyms: misconstrual |
| miscount | (noun) an inaccurate count | - |
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| miscreant | (noun) a person without moral scruples | Synonyms: reprobate |
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| miscreation | (noun) something abnormal or anomalous | Synonyms: malformation |
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| miscue | (noun) a faulty shot in billiards; the cue tip slips off the cue ball | - |
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| (noun) a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc. | Synonyms: parapraxis, slip-up, slip |
| mucoviscidosis | (noun) the most common hereditary disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known | Synonyms: CF, cystic fibrosis, fibrocystic disease of the pancreas, pancreatic fibrosis |
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