Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One trillionth (10-12) of a gram.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A unit of mass equal to 0.000 000 000 001 grams. Symbol: pg

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

pico- + gram

Examples

  • Remember that Contador tested positive for 50 picograms (a picogram is a trillionth of a gram) of clenbuterol per milliliter of urine.

    The Explainer: Why clenbuterol?

  • Remember that Contador tested positive for 50 picograms a picogram is a trillionth of a gram of clenbuterol per milliliter of urine.

    The Explainer: Why clenbuterol?

  • Thundat and his colleagues demonstrate that they could detect very small amounts of adsorbed explosives -- with a limit of 600 picograms (a picogram is a trillionth of a gram).

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  • EPA scientists already concluded in a preliminary report that people shouldn't consume more than 0.7 picogram of dioxin per kilogram of body weight a day.

    EPA Misses Deadline on Dioxin Guidelines

  • I consider it no small irony that the first syllable of the word dioxins sounds like die: So potent is this group of more than 100 cancer-causing industrial chemicals that the Environmental Protection Agency is currently considering setting the "safe" daily level for human exposure at seven-tenths of a picogram per kilogram of body weight.

    Jennifer Grayson: Eco Etiquette: Help! Am I Doomed By Dioxins?

  • Asked what a picogram was, Shiya Ribowsky said, “Think of it like this: if the universe is so large as to be beyond imagining, then the picogram might be smaller than we can conceive of.”

    The Lampshade

  • Bob Bever had already said that even if DNA could be retrieved from the sample, it would likely be at the “picogram” level.

    The Lampshade

  • We often snark about what lapdogs the media are, but they dropped every last picogram of pretense here.

    Coyote Blog » Blog Archive » Thoughts on Reaction to Tea Party Protests

  • One nanogram (ng) is one billionth of a gram, and one picogram (pg) is one trillionth of a gram.

    Public Health Statement for Chlorinated Dibenzo-p-dioxins (CDDs)

  • Monti-Bloch and Grosser 29 found the adult human VNO responds to picogram amounts of human skin pheromones with depolarization.

    Sexual Chemistry

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