gno·mon·ic \(ˈ)nō|mänik\adjective alsogno·mon·i·cal\-änə̇kəl\ Etymology:gnomonic from Latin gnomonicus, from Greek gnōmonikos, from gnōmon-, gnōmōn pointer on a sundial + -ikos -ic; gnomonical from Latin gnomonicus + English -al 1.: of or relating to the gnomon of a sundial or its use in telling time 2.: gnomic