GOV.WALES uses cookies which are essential for the site to work. Non-essential cookies are also used to tailor and improve services. By continuing to use this site, you agree to our use of cookies.
You are here:
Noun, Masculine, Singular
radioniwclidau
Math ansefydlog o elfen gemegol sy'n rhyddhau ymbelydredd wrth ddadfeilio a throi'n fwy sefydlog.