Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
rētĭcŭlātus, a, um, adj. [reticulum], made like a net, net-like, reticulated: fenestra, Varr. R. R. 3, 7, 3: structura parietum, Vitr. 2, 8; Plin. 36, 22, 51, § 172: distinctio concharum, id. 9, 33, 52, § 103.