junk ring


Definition of junk ring

  1. :  a wide ring around the piston of an internal-combustion engine forming the base for piston rings

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of junk ring

1junk; from its originally use in confining the hemp packing round the piston of a steam engine

Seen and Heard

What made you want to look up junk ring? Please tell us where you read or heard it (including the quote, if possible).


to cast off or become cast off

Get Word of the Day daily email!