| contractual | (adjective) relating to or part of a binding legal agreement | - |
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| contractually | (adverb) by virtue of a contract | - |
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| contracture | (noun) an abnormal and usually permanent contraction of a muscle | - |
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| corynebacterium | (noun) any species of the genus Corynebacterium | - |
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| counteract | (verb) act in opposition to | Synonyms: antagonise, antagonize |
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| (verb) destroy property or hinder normal operations | Synonyms: countermine, sabotage, subvert, undermine, weaken |
| (verb) oppose or check by a counteraction | Synonyms: countercheck |
| (verb) oppose and mitigate the effects of by contrary actions | Synonyms: counterbalance, countervail, neutralize |
| counteraction | (noun) action intended to nullify the effects of some previous action | Synonyms: neutralisation, neutralization |
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| counteractive | (adjective) opposing or neutralizing or mitigating an effect by contrary action | - |
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| counteractively | (adverb) in a counteractive manner | - |
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| counterattraction | (noun) a rival attraction | - |
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| counterfactual | (adjective) going counter to the facts (usually as a hypothesis) | Synonyms: contrary to fact |
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| counterfactuality | (noun) the quality of being contrary to fact | - |
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| cyanobacteria | (noun) predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton | Synonyms: blue-green algae |
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| cyanobacterial | (adjective) relating to or caused by photosynthetic bacteria of the class Cyanobacteria | Synonyms: cyanophyte |
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| dactyl | (noun) a finger or toe in human beings or corresponding body part in other vertebrates | Synonyms: digit |
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| (noun) a metrical unit with stressed-unstressed-unstressed syllables | - |
| dactylic | (adjective) of or consisting of dactyls | - |
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| dactylomegaly | (noun) abnormally large fingers or toes | - |
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| deactivate | (verb) make inactive | Synonyms: inactivate |
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| (verb) remove from active military status or reassign | - |
| deactivation | (noun) the act of deactivating or making ineffective (as a bomb) | Synonyms: defusing |
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| (noun) breaking up a military unit (by transfers or discharges) | Synonyms: inactivation |
| detract | (verb) take away a part from; diminish | Synonyms: take away |
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| detraction | (noun) the act of discrediting or detracting from someone's reputation (especially by slander) | - |
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| (noun) a petty disparagement | Synonyms: petty criticism |
| detractive | (adjective) causing to decrease in importance or value | - |
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| detractor | (noun) one who disparages or belittles the worth of something | Synonyms: depreciator, disparager, knocker |
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| didactic | (adjective) instructive (especially excessively) | Synonyms: didactical |
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| didactical | (adjective) instructive (especially excessively) | Synonyms: didactic |
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| didactically | (adverb) in a didactic manner | Synonyms: pedagogically |
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| didacticism | (noun) communication that is suitable for or intended to be instructive | - |
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| didactics | (noun) the activities of educating or instructing; activities that impart knowledge or skill | Synonyms: education, educational activity, instruction, pedagogy, teaching |
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| diffract | (verb) undergo diffraction | - |
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| diffraction | (noun) when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands | - |
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| dissatisfaction | (noun) the feeling of being displeased and discontent | - |
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| dissatisfactory | (adjective) not up to expectations | Synonyms: disappointing, unsatisfying |
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| distract | (verb) draw someone's attention away from something | Synonyms: deflect |
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| (verb) disturb in mind or make uneasy or cause to be worried or alarmed | Synonyms: cark, disorder, disquiet, perturb, trouble, unhinge |
| distracted | (adjective) having the attention diverted especially because of anxiety | Synonyms: distrait |
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| distractedly | (adverb) in a distracted manner | - |
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| distraction | (noun) an entertainment that provokes pleased interest and distracts you from worries and vexations | Synonyms: beguilement |
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| (noun) the act of distracting; drawing someone's attention away from something | Synonyms: misdirection |
| (noun) mental turmoil | - |
| (noun) an obstacle to attention | - |
| ebracteate | (adjective) without bracts | - |
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| echinocactus | (noun) any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil | Synonyms: barrel cactus |
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| ectrodactyly | (noun) congenital abnormality involving the absence of some fingers or toes | - |
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| enact | (verb) act out; represent or perform as if in a play | Synonyms: act out, reenact |
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| (verb) order by virtue of superior authority; decree | Synonyms: ordain |
| enactment | (noun) acting the part of a character on stage; dramatically representing the character by speech and action and gesture | Synonyms: characterization, personation, portrayal |
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| (noun) the passing of a law by a legislative body | Synonyms: passage |
| (noun) a legal document codifying the result of deliberations of a committee or society or legislative body | Synonyms: act |
| enterobacteria | (noun) rod-shaped Gram-negative bacteria; most occur normally or pathogenically in intestines of humans and other animals | Synonyms: enteric bacteria, enterics, entric |
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| eubacteria | (noun) a large group of bacteria having rigid cell walls; motile types have flagella | Synonyms: eubacterium, true bacteria |
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| eubacterium | (noun) a large group of bacteria having rigid cell walls; motile types have flagella | Synonyms: eubacteria, true bacteria |
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| exact | (adjective) marked by strict and particular and complete accordance with fact | - |
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| (adjective) (of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth; strictly correct | Synonyms: accurate, precise |
| (adjective) lacking compromising or mitigating elements | Synonyms: direct |
| (verb) claim as due or just | Synonyms: demand |
| (verb) take as an undesirable consequence of some event or state of affairs | Synonyms: claim, take |
| exacta | (noun) a bet that you can pick the first and second finishers in the right order | Synonyms: perfecta |
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| exacting | (adjective) having complicated nutritional requirements; especially growing only in special artificial cultures | Synonyms: fastidious |
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| (adjective) requiring precise accuracy | Synonyms: exigent |
| (adjective) severe and unremitting in making demands | Synonyms: stern, strict |
| exactingness | (noun) the quality or state of being demanding or unyielding. | - |
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| exaction | (noun) act of demanding or levying by force or authority | - |
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| exactitude | (noun) the quality of being exact | Synonyms: exactness |
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| exactly | (adverb) indicating exactness or preciseness | Synonyms: just, precisely, properly |
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| (adverb) in a precise manner | Synonyms: incisively, precisely |
| (adverb) just as it should be | Synonyms: on the button, on the dot, on the nose, precisely |
| exactness | (noun) the quality of being exact | Synonyms: exactitude |
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| extract | (noun) a passage selected from a larger work | Synonyms: excerpt, excerption, selection |
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| (noun) a solution obtained by steeping or soaking a substance (usually in water) | Synonyms: infusion |
| (verb) extract by the process of distillation | Synonyms: distil, distill |
| (verb) take out of a literary work in order to cite or copy | Synonyms: excerpt, take out |
| (verb) calculate the root of a number | - |
| (verb) remove, usually with some force or effort; also used in an abstract sense | Synonyms: draw out, pull, pull out, pull up, rip out, take out, tear out |
| (verb) obtain from a substance, as by mechanical action | Synonyms: express, press out |
| (verb) separate (a metal) from an ore | - |
| (verb) deduce (a principle) or construe (a meaning) | Synonyms: draw out, educe, elicit, evoke |
| (verb) get despite difficulties or obstacles | - |
| extractable | (adjective) capable of being extracted | Synonyms: extractible |
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| extractant | (noun) an immiscible liquid used to extract a substance from another liquid. | - |
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| extractible | (adjective) capable of being extracted | Synonyms: extractable |
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| extraction | (noun) the action of taking out something (especially using effort or force) | - |
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| (noun) properties attributable to your ancestry | Synonyms: descent, origin |
| (noun) the process of obtaining something from a mixture or compound by chemical or physical or mechanical means | - |
| extractivity | (noun) the amount of extract that grains of malt yield. | - |
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| extractor | (noun) an instrument for extracting tight-fitting components | - |
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| (noun) an apparatus that uses centrifugal force to separate particles from a suspension | Synonyms: centrifuge, separator |
| (noun) a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector | Synonyms: cartridge extractor, cartridge remover |
| extragalactic | (adjective) outside or beyond a galaxy | - |
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| fact | (noun) a piece of information about circumstances that exist or events that have occurred | - |
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| (noun) a concept whose truth can be proved | - |
| (noun) a statement or assertion of verified information about something that is the case or has happened | - |
| (noun) an event known to have happened or something known to have existed | - |
| faction | (noun) a dissenting clique | Synonyms: sect |
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| (noun) a clique (often secret) that seeks power usually through intrigue | Synonyms: cabal, camarilla, junto |
| factious | (adjective) dissenting (especially dissenting with the majority opinion) | Synonyms: dissentious, divisive |
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| factitious | (adjective) not produced by natural forces | - |
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| factoid | (noun) a brief (usually one sentence and usually trivial) news item | - |
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| (noun) something resembling a fact; unverified (often invented) information that is given credibility because it appeared in print | - |
| factor | (noun) (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity | Synonyms: cistron, gene |
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| (noun) an abstract part of something | Synonyms: component, constituent, element, ingredient |
| (noun) an independent variable in statistics | - |
| (noun) anything that contributes causally to a result | - |
| (noun) a businessman who buys or sells for another in exchange for a commission | Synonyms: agent, broker |
| (noun) one of two or more integers that can be exactly divided into another integer | Synonyms: divisor |
| (noun) any of the numbers (or symbols) that form a product when multiplied together | - |
| (verb) resolve into factors | Synonyms: factor in, factor out |
| (verb) consider as relevant when making a decision | Synonyms: factor in, factor out |
| (verb) be a contributing factor | - |
| factorial | (adjective) of or relating to factorials | - |
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| (noun) the product of all the integers up to and including a given integer | - |
| factoring | (noun) (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression | Synonyms: factorisation, factorization |
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| factorisation | (noun) (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression | Synonyms: factoring, factorization |
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| factorise | (verb) resolve (a polynomial) into factors | Synonyms: factorize |
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| factorization | (noun) (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression | Synonyms: factoring, factorisation |
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| factorize | (verb) resolve (a polynomial) into factors | Synonyms: factorise |
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| factory | (noun) a plant consisting of one or more buildings with facilities for manufacturing | Synonyms: manufactory, manufacturing plant, mill |
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| factotum | (noun) a servant employed to do a variety of jobs | - |
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| factual | (adjective) of or relating to or characterized by facts | - |
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| (adjective) existing in act or fact | Synonyms: actual |
| factuality | (noun) the quality of being actual or based on fact | Synonyms: factualness |
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| factually | (adverb) as a fact or based on fact | - |
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| factualness | (noun) the quality of being actual or based on fact | Synonyms: factuality |
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| fractal | (noun) (mathematics) a geometric pattern that is repeated at every scale and so cannot be represented by classical geometry | - |
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| fraction | (noun) a small part or item forming a piece of a whole | - |
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| (noun) the quotient of two rational numbers | - |
| (noun) a component of a mixture that has been separated by a fractional process | - |
| (verb) perform a division | Synonyms: divide |
| fractional | (adjective) constituting or comprising a part or fraction of a possible whole or entirety | Synonyms: partial |
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| (adjective) constituting a division or an aliquot part of the basic monetary unit | Synonyms: divisional |
| fractionate | (verb) obtain by a fractional process | - |
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| (verb) separate into constituents or fractions containing concentrated constituents | - |
| fractionation | (noun) separation into portions | - |
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| (noun) a process that uses heat to separate a substance into its components | Synonyms: fractional process |
| fractious | (adjective) unpredictably difficult in operation; likely to be troublesome | - |
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| (adjective) stubbornly resistant to authority or control | Synonyms: recalcitrant, refractory |
| (adjective) easily irritated or annoyed | Synonyms: cranky, irritable, nettlesome, peckish, peevish, pettish, petulant, scratchy, techy, testy, tetchy |
| fractiously | (adverb) in a fractious manner | - |
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| (adverb) in a peevish manner | Synonyms: peevishly, querulously |
| fractiousness | (noun) the trait of being prone to disobedience and lack of discipline | Synonyms: unruliness, wilfulness, willfulness |
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| fracture | (noun) the act of cracking something | Synonyms: crack, cracking |
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| (noun) (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other | Synonyms: break, fault, faulting, geological fault, shift |
| (noun) breaking of hard tissue such as bone | Synonyms: break |
| (verb) fracture a bone of | Synonyms: break |
| (verb) become fractured | - |
| (verb) violate or abuse | - |
| (verb) break into pieces | - |
| (verb) interrupt, break, or destroy | - |
| galactagogue | (noun) agent that induces milk secretion | - |
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| galactic | (adjective) of or relating to a galaxy (especially our galaxy the Milky Way) | - |
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| (adjective) inconceivably large | Synonyms: astronomic, astronomical |
| galactocele | (noun) a cystic tumor containing milk or a milky substance (especially in the mammary glands) | - |
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| galactose | (noun) a simple sugar found in lactose | Synonyms: brain sugar |
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| galactosemia | (noun) a genetic disease (autosomal recessive) in which an enzyme needed to metabolize galactose is deficient or absent; typically develops shortly after birth | - |
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| galactosis | (noun) the secretion of milk | - |
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| halobacter | (noun) halophiles in saline environments such as the Dead Sea or salt flats | Synonyms: halobacteria, halobacterium |
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| halobacteria | (noun) halophiles in saline environments such as the Dead Sea or salt flats | Synonyms: halobacter, halobacterium |
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| halobacterium | (noun) halophiles in saline environments such as the Dead Sea or salt flats | Synonyms: halobacter, halobacteria |
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| heterodactyl | (adjective) (of bird feet) having the first and second toes directed backward the third and fourth forward | - |
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| hoactzin | (noun) crested ill-smelling South American bird whose young have claws on the first and second digits of the wings | Synonyms: hoatzin, Opisthocomus hoazin, stinkbird |
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| hyperactive | (adjective) more active than normal | Synonyms: overactive |
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| hyperactivity | (noun) a condition characterized by excessive restlessness and movement | - |
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| hyperdactyly | (noun) birth defect characterized by the presence of more than the normal number of fingers or toes | Synonyms: polydactyly |
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