| cerastes | (noun) highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye | Synonyms: Cerastes cornutus, horned asp, horned viper, sand viper |
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| contrast | (noun) the act of distinguishing by comparing differences | - |
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| (noun) the range of optical density and tone on a photographic negative or print (or the extent to which adjacent areas on a television screen differ in brightness) | - |
| (noun) the perceptual effect of the juxtaposition of very different colors | - |
| (noun) a conceptual separation or distinction | Synonyms: demarcation, dividing line, line |
| (noun) the opposition or dissimilarity of things that are compared | Synonyms: direct contrast |
| infrastructure | (noun) the stock of basic facilities and capital equipment needed for the functioning of a country or area | Synonyms: base |
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| (noun) the basic structure or features of a system or organization | Synonyms: substructure |
| neurasthenia | (noun) nervous breakdown (not in technical use) | - |
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| neurasthenic | (noun) a person suffering a nervous breakdown | - |
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| paederast | (noun) a man who has sex (usually sodomy) with a boy as the passive partner | Synonyms: child molester, pederast |
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| paederasty | (noun) sexual relations between a man and a boy (usually anal intercourse with the boy as a passive partner) | Synonyms: pederasty |
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| pederast | (noun) a man who has sex (usually sodomy) with a boy as the passive partner | Synonyms: child molester, paederast |
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| pederasty | (noun) sexual relations between a man and a boy (usually anal intercourse with the boy as a passive partner) | Synonyms: paederasty |
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| procrastination | (noun) the act of procrastinating; putting off or delaying or deferring an action to a later time | Synonyms: cunctation, shillyshally |
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| (noun) slowness as a consequence of not getting around to it | Synonyms: dilatoriness |
| procrastinator | (noun) someone who postpones work (especially out of laziness or habitual carelessness) | Synonyms: cunctator, postponer |
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| raster | (noun) the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitor | - |
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| zooerastia | (noun) sexual activity between a person and an animal | Synonyms: bestiality, sodomy, zooerasty |
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| zooerasty | (noun) sexual activity between a person and an animal | Synonyms: bestiality, sodomy, zooerastia |
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