A more thorough explanation:

A delantal is a type of garment that is worn over clothing to protect it from getting dirty or stained while cooking, cleaning, or doing other messy tasks. It is typically made of a durable material like cotton or polyester and has straps that tie around the waist and neck to keep it in place.

• My mom always wears a delantal when she cooks so she doesn't get any sauce on her clothes.
• The waitress at the restaurant wore a delantal to keep her uniform clean while serving food.

These examples illustrate how a delantal is used to protect clothing from getting dirty or stained while performing tasks that involve mess or spills.