Definition
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ymchwil
Ymchwil yw'r broses o gasglu gwybodaeth a thystiolaeth i ddeall neu ymchwilio i faterion penodol.
Research is the process of gathering information and evidence to understand or investigate specific issues.
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Mae'r ymchwil yn dangos bod y newid yn yr hinsawdd yn effeithio ar les pawb.
The research shows that climate change affects everyone's well-being.
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Mae angen gwneud ymchwil fanwl cyn i ni wneud penderfyniadau ar y prosiect.
Detailed research needs to be done before we make decisions on the project.
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Mae'r ymchwil yn ymchwilio i effeithiau'r cyffuriau ar y corff dynol.
The research investigates the effects of drugs on the human body.