[ ree-mer ]
/ ˈri mər /


any of various rotary tools, with helical or straight flutes, for finishing or enlarging holes drilled in metal.
any bladelike pick or rod used for scraping, shaping, or enlarging a hole: a pipe reamer.
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.
Dentistry. a drill with a spiral blade, for enlarging root canals.

Nearby words

  1. realm,
  2. realpolitik,
  3. realtor,
  4. realty,
  5. ream,
  6. rean,
  7. reanalysis,
  8. reanimate,
  9. reap,
  10. reaper

Origin of reamer

First recorded in 1815–25; ream2 + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reamer

British Dictionary definitions for reamer


/ (ˈriːmə) /


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
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

Medicine definitions for reamer


[ rēmər ]


A rotating tool used to shape or enlarge holes.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.