Etymology: < Greek ἰσόνομος (see isonomyn.) + -oussuffix: in French isonome.
Crystallography. Obsolete.
See quot. 1816.
ΚΠ
1816 R. JamesonTreat. External Characters Minerals (ed. 2) 214 When the exponents which indicate the decrements on the edges, are equal to each other, and also those which indicate the decrements in the angles. Example, Isonomous artificial blue vitriol.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2019).