rivose
/ˈrʌɪvəʊz/Entomology rare
adjective
Of a surface: marked with sinuous grooves; (of surface sculpture, especially grooves) sinuous.
Origin
Early 19th century; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From scientific Latin rivosus from classical Latin rīvus stream + -ōsus.