UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈsmɔːlbɔːʳ/US:USA pronunciation: respellingUSA pronunciation: respelling(smôlbôr′, -bōr′)

WordReference Random House Unabridged Dictionary of American English © 2020
small-bore  (smôlbôr′, -bōr′),USA pronunciation adj. 
  1. Militaryof, noting, or relating to a .22-caliber firearm.
  2. insular or parochial in scope, attitude, etc.:small-bore officials.
  • 1895–1900

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