n.
Pronunciation: ' grid
Function: noun
Etymology: back-formation from gridiron
Date: 1839
1 : GRATING
2 a (1) : a perforated or ridged metal plate used as a conductor in a storage battery (2) : an electrode consisting of a mesh or a spiral of fine wire in an electron tube (3) : a network of conductors for distribution of electric power also : a network of radio or television stations b : a network of uniformly spaced horizontal and perpendicular lines (as for locating points on a map) also : something resembling such a network <a road grid > c : GRIDIRON 3 broadly : FOOTBALL
3 : the starting positions of cars on a racecourse
4 : a device in a photocomposer on which are located the characters to be exposed as the text is composed