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Meaning of small-bore

small-bore

Pronunciation: (smôl'bôr", -bōr"), [key]
— adj.
  1. of, noting, or relating to a .22-caliber firearm.
  2. insular or parochial in scope, attitude, etc.: small-bore officials.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.