from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the weight of 1 litre of hydrogen at standard temperature and pressure. Equal to approximately 0.09 grams.

from the GNU version of the Collaborative International Dictionary of English

  • n. The unit for estimating the weight of aëriform substances; -- the weight of a liter of hydrogen at 0° centigrade, and with a tension of 76 centimeters of mercury. It is 0.0896 of a gram, or 1.38274 grains.

from The Century Dictionary and Cyclopedia

  • n. The mass of 1,000 cubic centimeters (or the theoretical liter) of hydrogen at standard pressure and temperature.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the weight of a liter of hydrogen (at 0 centigrade and 760 millimeters pressure)


From Ancient Greek κριθή (krithe, "barley corn, a small weight") (Wiktionary)


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  • The weight of a liter of hydrogen at 0 centigrade and 760 millimeters pressure. (Now *that's* exact.)

    March 28, 2007