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 animal a brutish, mean, or cruel person. [1/5 definitions] average the arithmetic mean gained by adding two or more quantities and then dividing by the total number of quantities. [3/9 definitions] avg. abbreviation of "average," the arithmetic mean gained by adding two or more quantities and then dividing by the total number of quantities. cattish spiteful, mean, vindictive, or the like; catty. [1/2 definitions] centroid the arithmetic mean of all points that form the boundary of a two- or three-dimensional object. covariance in statistics, a measure of how two variables are related, equal to the product of the deviation of each variable from its mean. In positive covariance, the two variables (such as temperature and air conditioner use) are directly related and follow the same trend. In negative covariance, the two variables (such as temperature and heater use) are inversely related and follow opposite trends. cur an unpleasant or mean dog, esp. one of mixed breed. [1/2 definitions] currish mean or bad-tempered; snarling. [1/3 definitions] dastardly cowardly; mean; sneaky. degree-day a unit that represents one degree of difference, from a standard temperature, in the mean outdoor temperature on a certain day. denote to be a name or verbal symbol for; mean. [1/3 definitions] designate to stand for, mean, or indicate. [1/5 definitions] Greenwich time the solar time that is determined at the prime meridian through Greenwich, England, and that is used to calculate and regulate time throughout most of the world; Greenwich mean time. grimalkin a mean old woman. [1/2 definitions] lousy (informal) nasty, mean, or contemptible. [1/4 definitions] low1 mean, coarse, or lacking in dignity. [1/16 definitions] low-down (informal) nasty; mean; contemptible. mean deviation a measure of variability, esp. in a statistical distribution, that is equal to the average of the absolute values of a set of deviations from the arithmetic mean or some other specified value. meanie (informal) a mean or selfish person (often used ironically). meanness a mean act or mean behavior. [1/2 definitions] meant past tense and past participle of mean1.