noun
Meaning 1
A compound in which tar or asphalt combined with animal or vegetable oils is vulcanized by sulphur, the product closely resembling rubber; formerly used as an insulating material in telegraphy.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided