windowpaning

Noun

 * 1)  The border around an individual block of a quilt.
 * 2)  A test of the texture of bread dough, stretching it out into a translucent sheet.
 * 3) The situation where the edges of tiles absorb some pigment from the grout used to cement them in place.
 * 4) A form of leaf damage caused by chewing insects, leaving translucent holes.