microcrith Meaning, Definition & Usage

Mi`cro*crith" noun
Etymology
Micro- + crith.
Definitions
  1. (Chem.) The weight of the half hydrogen molecule, or of the hydrogen atom, taken as the standard in comparing the atomic weights of the elements; thus, an atom of oxygen weighs sixteen microcriths. See Crith. J. P. Cooke.

Webster 1913