English: vibration white finger
Welsh: cyflwr y bysedd gwyn
Subject: Iechyd
English definition: A condition in which the blood supply is interrupted. In the late 1990s many miners and gas workers received compensation for injuries sustained using pneumatic drills and hammers.. 
Welsh definition: Ffurf arall ar 'Raynaud's disease'. Mae'n cael ei achosi drwy weithio gydag offer sy'n crynu fel driliau a llifiau..