reseau
noun
re·seau rā-ˈzō 
ri-
plural reseaux rā-ˈzōz
ri-
1
: a net ground or foundation in lace
2
: a grid photographed by a separate exposure onto a plate containing star images to facilitate astronomical measurements
Word History
Etymology
French réseau, literally, network, from Old French resel, diminutive of rais net, from Latin retis, rete
First Known Use
1578, in the meaning defined at sense 1