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Definition: Arolwg o sampl cynrychioliadol o bobl er mwyn casglu gwybodaeth am farn ar fater penodol.
Notes: Weithiau defnyddir y ffurf fer poll/pôl am y cysyniad hwn. Sylwer ar y gwahaniaeth ystyr rhwng 'poll' ym maes cyllid ac ystadegau a 'poll' ym maes gwleidyddiaeth.
