from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A hard rubber produced by vulcanization.

from The Century Dictionary.

  • noun The harder of the two forms of vulcanized india-rubber, the other form being known as soft rubber.
  • noun A name sometimes given to pyroxene, from its being found i n ejected blocks and lavas

from the GNU version of the Collaborative International Dictionary of English.

  • noun Hard rubber produced by vulcanizing with a large proportion of sulphur.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A hard rubber made by vulcanization with sulfur; ebonite

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a hard nonresilient rubber formed by vulcanizing natural rubber


Sorry, no etymologies found.



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