1 hard rubber | Definition of hard rubber
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hard rubber

noun

Definition of hard rubber

: a firm rubber or rubber product especially : a normally black horny substance made by vulcanizing natural rubber with high percentages of sulfur

Examples of hard rubber in a Sentence

Recent Examples on the Web

 And tractor owners complained to dealer Hoyle Pounds, who pondered the problem, had an idea and, from Oklahoma, ordered large, hard rubber tires designed for oil-drilling equipment. — Joy Wallace Dickinson, OrlandoSentinel.com, "Orlandoans dove into July 4 fun at Joyland," 1 July 2018 The American Academy of Pediatrics recommends just rubbing the swollen gums with your finger and letting the child chew on hard rubber teething rings. — Philly.com, "Why it's time to abandon teething medications," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hard rubber.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of hard rubber

1855, in the meaning defined above

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