" ....the activity of bacteria, growing within the sewage and on sewer
walls, reduces sulphur containing compounds and sulphates to form sulphides
and other malodorous sulphur compounds. This is termed ‘septicity’."
Ai "madredd" yw'r gair iawn am "septicity" yn y cyd-destun hwn?
GyrA - septicity = sepsis = madredd
GPC - madredd = pus, gore, ... putrefaction, decomposition, corruption
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