reseau

noun pl. -·seaux′-zōz′, -zō′

1. a network; specif.,
   1. a grid of fine lines forming little squares of a standard size: used with celestial photographs and plates for reference or measurement
   2. a network of meteorological stations throughout the world
2. a netted ground or meshed foundation in lace

Etymology: Fr < OFr resel, dim. of roiz < VL retis, for L rete, net: see retina