monotrope

Noun

monotrope (plural monotropes)

1. Any plant belonging to the Monotropoideae.
2. A polymorph that does not have a reversible transformation into another form; A polymorphic crystal for which one form is more stable than any other form when cooled below the melting point.
   • Since α-carbamazepine is a monotrope of γ-carbamazepine, and γ-carbamazepine is an enantiotrope of β-carbamazepine, the physical stability hierarchy depends on the transition temperature of β- and γ-carbamazepine.2004, Peter York, Uday B. Kompella, Boris Y. Shekunov, Supercritical Fluid Technology for Drug Product Development, page 288
   • Differential scanning calorimetry (DSC) or differential thermal analysis (DTA) scans (Section 5.5.3) can be employed to distinguish an enantiotrope from a monotrope.2011, Gautam R. Desiraju, Jagadese J. Vittal, Arunachalam Ramanan, Crystal Engineering, page 112