'Arch rim' definitions:

Definition of 'Arch rim'

From: GCIDE
  • Rim \Rim\, n. [As. rima, reoma, edge; cf. W. rhim, rhimp, a rim, edge, boundary, termination, Armor, rim. Cf. Rind.]
  • 1. The border, edge, or margin of a thing, usually of something circular or curving; as, the rim of a kettle or basin. [1913 Webster]
  • 2. The lower part of the abdomen. [Obs.] --Shak. [1913 Webster]
  • Arch rim (Phonetics), the line between the gums and the palate.
  • Rim-fire cartridge. (Mil.) See under Cartridge.
  • Rim lock. See under Lock. [1913 Webster]