graylingEtymologyFrom Middle English greylyng, equivalent to gray + -ling.nameA surname.A small city in Yukon-Koyukuk Census Area, Alaska, United States.A city, the county seat of Crawford County, Michigan, United States.A charter township in Crawford County, Michigan, which surrounds the city.nounAny freshwater fish of the genus Thymallus or specifically Thymallus thymallus, of the salmon family, having a large dorsal fin.““This morning,” he said, “We will fish, Turner. We will cast for trout so that we may catch grayling.””Other similar fish; Thymallus arcticus (Arctic grayling)Other similar fish; Salmo salar (Atlantic salmon)Other similar fish; Prototroctes spp. (Retropinnidae); Prototroctes maraena (Australian grayling)Other similar fish; Prototroctes spp. (Retropinnidae); Prototroctes oxyrhynchus (New Zealand grayling)Any of species Hipparchia semele, of the family Nymphalidae of butterflies.