[ ree-mer ]

  1. any of various rotary tools, with helical or straight flutes, for finishing or enlarging holes drilled in metal.

  2. any bladelike pick or rod used for scraping, shaping, or enlarging a hole: a pipe reamer.

  1. a kitchen utensil for extracting and collecting juice from fruits, having a deep saucerlike base and in the center a grooved cone on which the fruit half is pressed down by hand.

  2. Dentistry. a drill with a spiral blade, for enlarging root canals.

Origin of reamer

First recorded in 1815–25; ream2 + -er1

Words Nearby reamer Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use reamer in a sentence

  • Special reamer for cutting sealing ring oil Universal batteries.

  • With this reamer remove the ring of metal or flange on the post, thereby releasing the cell cover.

  • To break the seal, a hollow reamer or facing tool, fitted into a drill press or breast drill, is slipped over the post.

  • After the thread is cut, take the reamer and ream out the burr that is on the inside of the pipe caused by the pipe cutter.

    Elements of Plumbing | Samuel Dibble
  • Daniel De reamer was his king, and his king could do no wrong.

    The Road Builders | Samuel Merwin

British Dictionary definitions for reamer


/ (ˈriːmə) /

  1. a steel tool with a cylindrical or tapered shank around which longitudinal teeth are ground, used for smoothing the bores of holes accurately to size

  2. US a utensil with a conical projection used for extracting juice from citrus fruits; lemon squeezer

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012