microcrith
nounEtymology From micro- + crith.
1
Natural sciences, Physical sciences, Physics Obsolete The weight of the half hydrogen molecule, or of the hydrogen atom, taken as the standard in comparing the atomic weights of the elements.
- An atom of oxygen weighs sixteen microcriths.
- 1872, Josiah Parsons Cooke (Jr.), Principles of Chemical Philosophy It will perhaps serve to give greater definiteness to our conceptions if , even at the risk of coining a new word , we call the unit of molecular weights a microcrith .