trawsnewidiad gwedd

== Welsh == === Pronunciation === IPA(key): /trau̯snɛˈwɪdjad ˈɡweːð/ === Noun === trawsnewidiad gwedd m (plural trawsnewidiadau gwedd) (chemistry) phase transition ==== Usage notes ==== A morphologically derived deverbal noun, such as this entry, is a countable noun. The corresponding uncountable verbal noun is attained in Welsh by employing the verbnoun or dictionary form of the related verb as a masculine singular noun. ==== Related terms ==== cyflwr mater (“state of matter”) === See also === === Mutation ===