- a very slender line.
- the lower edge of the hair, especially along the upper forehead: a hairline that slowly receded.
- worsted fabric woven with very fine lines or stripes.
- narrow or fine as a hair: a hairline fracture.
Origin of hairline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hairline
Hairline receded, the threat of winning decidedly muted, Roger Federer is almost 32.Roger Federer’s Hair Evolution
June 9, 2013
His hairline was receding, but he was visibly muscle-bound even in a suit.Did a CIA Agent Work for the Mob? Excerpt from Evan Wright’s New Book
June 28, 2012
I also developed facial hair like a beard and around my hairline.Your Puffy-Face Moments, Inspired by Ashley Judd
April 13, 2012
Perry discusses his upcoming execution with an aw-shucks smile; his hairline is tasseled with greasy bangs.Werner Herzog’s 'Into the Abyss' Explores the Death Penalty
November 20, 2011
He readjusted the slide rule and slid the hairline over a bit.Islands of Space
John W Campbell
The hairline above his ear was a simpler curve than she recalled.Wilderness of Spring
He inspected the base of the hook closely and there seemed to be a fine, hairline fracture appearing around it.The Nothing Equation
There was a lot of grey in his short hair, and his hairline was a lot higher up his forehead.Makers
In the sunlight it gleamed like polished silver, but they could see a hairline break in the metal encircling the center portion.Gold in the Sky
Alan Edward Nourse
- the natural margin formed by hair on the head
- a very narrow line
- (as modifier)a hairline crack
- a thin stroke in a typeface
- any typeface consisting of such strokes
- thin lines beside a character, produced by worn or poorly cast type
- a rope or line of hair
Word Origin and History for hairline
Online Etymology Dictionary, © 2010 Douglas Harper
- The outline of the growth of hair on the head, especially across the front.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.