† microcrithn.
Chemistry. Obsolete. rare.
A unit of molecular weight, equal to the mass of a hydrogen atom.
ΚΠ
1873 J. P. Cooke New Chem. (1874) iii. 73 I propose to call the unit of molecular weight we have adopted a microcrith, even at the risk of coining a new word.
1882 Mind 7 468 The weight of the hydrogen-atom is taken as the unit of molecular weight, or microcrith, and..according to calculations based on the figures of Sir William Thomson, this atom weighs approximately..109,312 octillionths of a gramme.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online June 2018).
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n.1873- sight-board
- sight-chase
- sight-court
- sight-fitting
- sight-glass
- sight-glasses
- sight-holder
- sight-hole
- sight-hungry
- sight-hunter
- sight-invigorating
- sight-irking
- sight-killingly
- sight-line
- sight-magnitude
- sight-maker
- sight-measure
- sight-piece
- sight-player
- sight-playing
- sight-point
- sight-proof
- sight-read
- sight-reader
- sight-reading