trawsnewidiad

== Welsh == === Etymology === From trawsnewid +‎ -iad. === Noun === trawsnewidiad m (plural trawsnewidiadau) conversion, transformation, transfiguration (process or result of converting) ==== Derived terms ==== trawsnewidiad gwedd (“phase transition”) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “trawsnewidiad”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies