Ré`seau" (?), n. [F.]
A network; specif.:
(a) (Astron.)
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.
(b)
In lace, a ground or foundation of regular meshes, like network.
© Webster 1913