Lineament is a noun that refers to a distinctive feature -- especially on the face.
Linea (LIN ee ah) comes from Latin and means ‘line.’ Keep in mind that a ‘line’ may refer to a straight line or an outline with curves and features that stand out — just as a distinctive nose may stand out in the contour of a person’s face.
With his giant chin, it wasn’t difficult to identify Jake after all these years. Decades later that lineament still stands out.
Lineament is spelled LINEAMENT.