Definition of "hard rubber" []

• Ebonite. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Nine hard rubber balls hit Eli in the space of a half second, knocking his legs out from under him, blowing his glasses off, pelting his arms and legs and nuts and lofting him straight into the air and onto his back, his broken glasses skidding to rest a few inches from my feet."
• "And we did play dodgeball, or rather an even lower-skill variation called battle ball, in which two teams stood on either side of the gym, against the walls, and simply pelted each other with hard rubber balls."
• "First he snagged another kitten ... and then a hard rubber ball ... and then a kitten so unusual, so significant, that Qwilleran dropped it in a drawer of the huntboard."