| ANTEDILUVIAL | • antediluvial adj. (Biblical) Of or pertaining to a time before Noah’s flood. • antediluvial adj. (Rare) Antiquated.
 • ANTEDILUVIAL adj. pertaining to the period before the Biblical flood or any great flood, also ANTEDILUVIAN.
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| ANTEDILUVIAN | • antediluvian adj. Ancient or antiquated. • antediluvian adj. Extremely dated.
 • antediluvian adj. Pertaining or belonging to the time period prior to a great or destructive flood or deluge.
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| DEACTIVATING | • deactivating v. Present participle of deactivate. • DEACTIVATE v. to make inactive or ineffective.
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| DEACTIVATION | • deactivation n. The act of deactivating something, such as a bomb or alarm. • DEACTIVATION n. the process of deactivating.
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| DERIVATIONAL | • derivational adj. (Grammar) Of or pertaining to derivation; relating to that which is derived. • DERIVATIONAL adj. relating to derivation.
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| DIVARICATING | • divaricating v. Present participle of divaricate. • DIVARICATE v. to fork, diverge.
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| DIVARICATION | • divarication n. A divergence of opinion. • divarication n. The point at which branching occurs.
 • divarication n. (Botany) The growth habit of some low-growing shrubs; with wide angles where they diverge, the branches may interlace.
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| DIVINATORIAL | • divinatorial adj. Relating to divination. • DIVINATORIAL adj. relating to divination, conjectural.
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| INVALIDATING | • invalidating v. Present participle of invalidate. • INVALIDATE v. to make invalid.
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| INVALIDATION | • invalidation n. The act of invalidating, or the state of being invalidated. • INVALIDATION n. the act of invalidating.
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| INVALIDATORS | • invalidators n. Plural of invalidator. • INVALIDATOR n. one who invalidates.
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| REVALIDATING | • revalidating v. Present participle of revalidate. • REVALIDATE v. to validate again.
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| REVALIDATION | • revalidation n. The act of revalidating. • REVALIDATION n. the action or an instance of revalidating.
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| VASODILATION | • vasodilation n. Dilation or widening of the blood vessels. • VASODILATION n. the dilatation of blood vessels, also VASODILATATION.
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