An interwoven combination of parts or elements in a structure or system.
The system of equations required for the complete expression of the relations which exist between a set of quantities.
A network of anastomosing or interwoven nerves, blood vessels, or lymphatic vessels.
In lace, a ground or foundation of regular meshes.
A system of lines forming small squares of standard size, which is photographed, by a separate exposure, on the same plate with star images to facilitate measurements, detect changes of the film, etc.