The definition of a metropolis is a large or main city.
(noun)An example of a metropolis is Manhattan, New York.
See metropolis in Webster's New World College Dictionary
noun pl. metropolises
Origin: LL < Gr mētropolis < mētēr, mother + polis, a state, city: see police
See metropolis in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English metropol
Origin: , from Late Latin mētropolis, mother-city
Origin: , from Greek
Origin: : mētēr, mētr-, mother; see māter- in Indo-European roots
Origin: + polis, city; see pelə-3 in Indo-European roots
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