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Advent |
Noun
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the season including the four Sundays preceding Christmas |
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action potential |
Noun
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the local voltage change across the cell wall as a nerve impulse is transmitted |
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accidental injury |
Noun
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an accident that results in physical damage or hurt |
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adrenarche |
Noun
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the increase in activity of the adrenal glands just before puberty |
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act of God |
Noun
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a natural and unavoidable catastrophe that interrupts the expected course of events |
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avalanche |
Noun
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a sudden appearance of an overwhelming number of things |
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avalanche |
Noun
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a slide of large masses of snow and ice and mud down a mountain |
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avalanche |
Verb
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to gather into a huge mass and roll down a mountain, of snow |
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apocalypse |
Noun
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a cosmic cataclysm in which God destroys the ruling powers of evil |
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augury |
Noun
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an event that is experienced as indicating important things to come |
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algorithm error |
Noun
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error resulting from the choice of the wrong algorithm or method for achieving the intended result |
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accident |
Noun
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anything that happens suddenly or by chance without an apparent cause |
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accident |
Noun
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an unfortunate mishap |
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acoustic wave |
Noun
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(acoustics) a wave that transmits sound |
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air wave |
Noun
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a sound wave that is transmitted via air |
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adversity |
Noun
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a stroke of ill fortune |
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adversity |
Noun
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a state of misfortune or affliction |
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allomerism |
Noun
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(chemistry) variability in chemical composition without variation in crystalline form |
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annular eclipse |
Noun
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only a thin outer disk of the sun can be seen |
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amphimixis |
Noun
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union of sperm and egg in sexual reproduction |
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amphimixis |
Noun
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reproduction involving the union or fusion of a male and a female gamete |
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atavism |
Noun
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a reappearance of an earlier characteristic |
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airflow |
Noun
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the flow of air |
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air flow |
Noun
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the flow of air |
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atrophy |
Noun
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any weakening or degeneration (especially through lack of use) |
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atrophy |
Noun
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a decrease in size of an organ caused by disease or disuse |
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atrophy |
Verb
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to weaken or degenerate |
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airburst |
Noun
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an explosion in the atmosphere |
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atomic explosion |
Noun
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the explosion of an atomic bomb |
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abiotrophy |
Noun
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a loss of vitality and a degeneration of cells and tissues not due to any apparent injury |
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aftershock |
Noun
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a tremor (or one of a series of tremors) occurring after the main shock of an earthquake |
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atmospherics |
Noun
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a crackling or hissing noise caused by electrical interference |
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atmospheric static |
Noun
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a crackling or hissing noise caused by electrical interference |
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aegir |
Noun
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a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary) |
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allogamy |
Noun
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cross-fertilization in plants |
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autogamy |
Noun
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self-fertilization in plants |
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affect |
Noun
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the conscious subjective aspect of feeling or emotion |
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affect |
Verb
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to act physically on |
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affect |
Verb
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to have an effect upon or make a difference on something |
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affect |
Verb
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to make believe with the intent to deceive |
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affect |
Verb
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to have an emotional or cognitive impact upon |
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affect |
Verb
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to connect closely and often incriminatingly |
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adaptive radiation |
Noun
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the development of many different forms from an originally homogeneous group of organisms as they fill different ecological niches |
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axial rotation |
Noun
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rotary motion of an object around its own axis |
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athletic contest |
Noun
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a contest between athletes |
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axial motion |
Noun
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rotary motion of an object around its own axis |
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athletic competition |
Noun
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a contest between athletes |
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auto race |
Noun
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a race between (usually high-performance) automobiles |
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arms race |
Noun
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a competition between nations to have the most powerful armaments |
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angelus bell |
Noun
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the sound of a bell rung in Roman Catholic churches to announce the time when the Angelus should be recited |