Hairline

Fred's receding hairline. (COMIC: Party Animals ^[+]Loading...["Party Animals (comic story)"])

You may be looking for hairline fracture.

As a Mark VI combat mechanical quickly determined, Graham O'Brien's hairline was receding. (PROSE: The Secret in Vault 13 ^[+]Loading...["The Secret in Vault 13 (novel)"])

The incarnation of the Doctor commonly known as "Fred" had a receding hairline, (COMIC: Party Animals ^[+]Loading...["Party Animals (comic story)"]) as did the Unbound Master. (AUDIO: The True Saviour of the Universe ^[+]Loading...["The True Saviour of the Universe (audio story)"])

Raxacoricofallapatorians wearing skin suits unzipped just above the hairline to remove their disguises. This revealed a bright light emanating from here, due to their compression field. (TV: Aliens of London ^[+]Loading...["Aliens of London (TV story)"] / World War Three ^[+]Loading...["World War Three (TV story)"])