What is a narrow piece of linen or the like, folded across the breast, or attached to the gown at the neck, forming a part of a woman's dress in the 17th century and later called?

tucker — A narrow piece of linen or the like, folded across the breast, or attached to the gown at the neck, forming a part of a woman's dress in the 17th century and later. (Webster's 1913.)