eyebrow pencil

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A cosmetic pencil used for extending or darkening the eyebrows.

from the GNU version of the Collaborative International Dictionary of English.

• noun a cosmetic pencil-like device used to apply a tint to the eyebrows, or darken lighter areas on the eyebrows. It is sometimes used to create a “beauty mark” on the face.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Makeup in a pencil-like applicator used to define or draw on the eyebrows.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun makeup provided by a cosmetic pencil that is used to darken the eyebrows