ebonite
noun
eb·o·nite ˈe-bə-ˌnīt 
: hard rubber especially when black
Example Sentences
Recent Examples on the Web The former features an ebonite feed and an 18-karat gold nib available in a variety of sizes. 
Nancy Olson, Forbes, 13 Sep. 2021
Nancy Olson, Forbes, 13 Sep. 2021 Word History
First Known Use
1861, in the meaning defined above
- subdividing
- subdivisible
- subdivision
- subdivisions
- subdolichocephalic
- subdolichocephalism
- subdolichocephalous
- subdolichocephaly
- subdolous
- subdominance
- subdominant
- subdominants
- subdorsal
- subdorsally
- subdrain
- subdrainage
- subdrill
- subduable
- subduabler
- subduablest
- subdual
- subduals
- subduced
- subduces
- subducing