English Explanatory Dictionary

impsonite

English dictionary entry

Meanings

noun
  1. A black carbonaceous substance, believed to be derived from a fluid bitumen which polymerized after filling a vein.

Word forms

impsonite impsonites

Etymology

From Impson + -ite, after a sample from the Impson Valley (later reclassified as grahamite); coined by George Homans Eldridge in 1901.

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