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Meaning of undercount

un•der•count

Pronunciation: (v.un"dur-kount'n.un'dur-kount"), [key]
— v.t.
  1. to count less than the full number or amount of: The mayor claimed the census had undercounted the city's population.
—n.
  1. a count or total that is less than the actual number or amount.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.