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An olive green, glasslike substance formed from the sand melted by the heat that was generated by the first nuclear blast at the New Mexico test site in 1945.

[After the Trinity Site in New Mexico, after Trinity, code name for the first atomic bomb test.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
8), a 20[cm.sup.3] block of irradiated glass from Fukushima combined with a core of Trinitite, the eerie manmade mineral produced from fused sand at the site of the first nuclear weapons tests.
Removing Trinitite from the site is a federal crime.
"I thought if I could get some ant sand, maybe I'd find at least a vial of little Trinitite pieces collected from around the site," says Hermes.
Moreover, a single carrier group could easily reduce any Middle Eastern nation to radioactive trinitite glass with the nuclear weapons in its arsenal if necessary.
Visitors to Trinity today won't see that stretch of sea-green glass--a radioactive substance dubbed trinitite. It has been removed, and the little that remains has been bulldozed and mixed with sand.
But even if I tried, I'm not sure I could distinguish the still mildly radioactive Trinitite from regular stones.
(18) Lewis is also likely to have known about another glassy substance--"trinitite," a substance rather more closely associated with the bomb.
"Trinitite: Product of the First Atomic Bomb Explosion." Mineralogical Research Co., 1998-2009.
Fear and Tenderness consists of "cast and carved de-carbonized bone dust, bone calcium, military-issued glass eyes for wounded soldiers coated with ground trinitite (glass produced during the first atomic test explosion, when heat from the blast melted surrounding sand), fragments of a soldier's personal mirror salvaged from a battlefield, soldier's uniform material and thread from various wars, melted bullet lead and shrapnel from various wars, fragment of a soldier's letter home, woven human hair of a war widow, bittersweet leaves, soldier-made clay marbles, battlefield dirt, cast bronze teeth, dried rosebuds, porcupine quill, excavated dog tags, rust, velvet, walnut."
And that was when she collected those pieces of Trinitite. (14) So I was trying to imagine what the world was like all those years ago, without these super highways.
On my way back to the gate, I searched the ground for Trinitite, the glassy green particles that came into being when the heat of the bomb congealed steel and desert sand.
Trinity Site even has its own special kind of dirt: an eerie green glassy substance known as Trinitite, produced by the intense heat of the atomic explosion.