blue line


noun Ice Hockey.

either of two lines of the color blue that are parallel to and equidistant from the goal lines and divide the rink into three zones of equal size. Also called zone line.Compare end zone(def 2), neutral zone.

Origin of blue line

First recorded in 1925–30

Medical definitions for blue line

blue line

n.

A bluish line along a border of the gums resulting from chronic lead poisoning.