Difficult GRE Words - Group 12

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n. animals having a bony or cartilaginous skeleton with a segmented spinal column

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n. highest point; apex or summit; common point of two lines of angle

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n. vitality and energy; healthy capacity for vigorous activity

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v. clear from blame; exonerate; maintain, uphold, or defend

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n. resistance of a liquid to shear forces; physics coefficient of viscosity; quality of flowing slowly

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a. marked by harsh spoken or written abuse; scolding

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a. offensively loud; noisy; making outcry

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a. large in volume or bulk; large in number or quantity, especially of discourse

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n. quality or state of being vulgar; mean condition of life; state of lower classes of society

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v. decrease in size or strength; draw gradually to an end