Main Entry:

hair·line

Pronunciation:

\-ˈlīn\

Function:

noun

Date:

1846

1: a very slender line: as a: a tiny line or crack on a surface <a hairline bone fracture> b: a fine line connecting thicker strokes in a printed letter 2: hairbreadth3 a: a textile design consisting of lengthwise or crosswise lines usually one thread wide b: a fabric with such a design4 a: the outline of scalp hair especially on the forehead b: the way the hair frames the face

— hairline adjective