Definition of white line in US English:

white line


  • 1Anatomy. A thickened whitish band in the pelvic fascia, specifically that of the fascia covering the superior surfaces of the levator ani muscles.

  • 2Printing. A blank line left between two lines of type, or at the head or foot of a page. Now rare.

  • 3Engraving. An engraved line which prints white on a dark ground; the process or method of using such lines.

  • 4Chiefly Nautical. A fine undyed or untarred cord or rope.

  • 5A narrow white strip painted on a road surface as a guide for motorists; especially one that separates adjacent traffic lanes.


  • Entomology. Forming names of moths which have a linear white marking on the forewing; especially in "white-line dart"noun (also "white-line dart moth") a Eurasian noctuid moth, Euxoa tritici.


Late 16th century (in an earlier sense). From white + line.


white line

/ˈwʌɪt ˈlʌɪn/