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obsidian dating

American  

noun

Archaeology.

  1. a method of dating obsidian artifacts or debitage by calculating how long it has taken to produce a given thickness of a hydration layer within such matter.

Etymology

Origin of obsidian dating

First recorded in 1965–70

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.