noun lac·to·prene \ˈlaktəˌprēn\

Definition of lactoprene



  1. :  any of several synthetic rubbers that are polymers or copolymers of an acrylic ester (as ethyl acrylate) and are characterized by good resistance to flexing and good resistance to hydrocarbon oils, oxygen and ozone, weather, and heat but not to low temperatures

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 lactoprene

lact- + isoprene

Seen and Heard

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


to criticize severely

Get Word of the Day daily email!