English: combined sewerage

Part of speech

Noun, Feminine, Singular

Definition

System garthffosiaeth lle caiff dŵr wyneb (hy dŵr glaw) a dŵr gwastraff o gartrefi a busnesau eu cyfuno mewn un carthffos, felly nid oes systemau ar wahân ar gyfer delio â dŵr wyneb a dŵr gwastraff.