microcrith

plural microcriths

1. obsoletenatural sciencesThe 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.

   1 more example

   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 .