Diolch, bawb.
Wedi cael esboniad erbyn hyn:
"Flushed cliff means those wet dripping faces of boulder clay cliffs where groundwater seeps over the surface. They are partly vegetated but often have landslips."
Gan fod y Cyngor Cefn Gwlad gynt wedi defnyddio “diferol” am “dripping”, mae'r cwsmer yn awgrymu “clogwyn diferol” neu efallai “clogwyn sy’n diferu.”
Diolch
Siân
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