Posted on 19th July 2016 by melyn Tempredhlinen is the Cornish word for isotherm Yes, isotherm in Cornish is tempredhlinen Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Pollen is the Cornish word for puddleNext post: Gradhya is the Cornish word for graduate