highlighter

noun

1. a cosmetic used to emphasize some part of the face, as the eyes or the cheekbones.
2. a felt-tip pen with a wide nib for highlighting passages of printed material in a soft, transparent color.

noun

1. a cosmetic cream or powder applied to the face to highlight the cheekbones, eyes, etc
2. a fluorescent felt-tip pen used as a marker to emphasize a section of text without obscuring it