Crith
Crith (krith) , noun
[Greek kriqh` a barleycorn, a small weight.]
(Chemistry) The unit for estimating the weight of aeriform 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.